Important Notes:

• All product parameters will be trimmed of excess leading and trailing whitespace when added to the cart. This can cause problems with price validation if you're not careful.
• Case sensitivity: Product parameters are case sensitive.

name

Description: The name of the product that will be displayed in the cart.

Accepts: Any characters. Limited to 255 characters in length.

Example: &name=My+Example+Product

Notes: Required.

price

Description: The cost of the product.

Accepts: Number (integer or decimal).

Example: &price=9.99

Notes: Required.

Multi-currency: Optionally accepts a 3-character ISO currency code appended to the numeric portion. More details here.

image

Description: An image for the product, displayed in the cart.

Accepts: A full URI to an image, starting with http: or https:, or a relative path to the image from the store's domain (as configured in the store settings). Limited to 200 characters in length.

Examples: &image=http://example.com/path/to/image.jpg, &image=local/path/to/image.png, <input type=“hidden” name=“image” value=“http://example.com/path/to/image.jpg”>

Notes: Images will not be resized, but they will automatically be securely cached, so you don't need to worry about security warnings.

url

Description: A URL for the product, displayed in the cart.

Accepts: A full URL to the product page, starting with http: or https:, or a relative path to the produt from the store's domain (as configured in the store settings).

Example: &url=http://example.com/path/to/product, &url=local/path/to/product

Notes: The URL will only be applied if the image parameter is also present, and will be wrapped around the image in the cart.

code

Description: Item code. Can be used however you’d like (internal use, product SKU, etc.).

Accepts: Any characters. Limited to 200 characters in length.

Example: &code=ISBN 978-0-12-345678-9

Notes: Required if using Link and Form Validation. Not required otherwise.

parent_code

Description: Parent item code. Used if this should be a child product in a bundle.

Accepts: Any characters. Limited to 200 characters in length.

Example: &parent_code=bundle7734

Notes: There are some special requirements for this field if using Link and Form Validation. If you set quantity_min=1, the child product will be locked to the parent product and won't be able to be deleted by itself or have it's quantity changed independently.

quantity

Description: Quantity of products. If left blank, it will default to 1.

Default: 1

Accepts: Integer. Decimals are not supported.

Example: &quantity=3

Notes: In forms it often makes sense to make the quantity input be an input[type=text] or select element to allow the customer to enter or choose their desired quantity.

quantity_max

Description: Maximum quantity that should be allowed per product, per cart.

Accepts: Integer.

Notes: This attribute, like all others, relies on the products in the cart being identical. If another product is entered with any variation, it is considered a new product. ie. quantity_max cannot apply to groupings of multiple products. Also, this value does not control inventory. The values are per cart/transaction/session.

quantity_min

Description: Minimum quantity that should be allowed per product, per cart.

Accepts: Integer.

Notes: This attribute, like all others, relies on the products in the cart being identical. If another product is entered with any variation, it is considered a new product. ie. quantity_min cannot apply to groupings of multiple products. Also, this value does not control inventory. The values are per cart/transaction/session.

category

Description: Category identifier for the product.

Default: This will default to the default category if left blank.

Accepts: Any valid category code, as configured in the store's admin. Will error on an invalid code.

expires

Description: Allows you to sell products which are only available for purchase before a certain date or for a limited time. You can pass in a number of minutes or a timestamp in the future at which point the product will be removed from the cart. An informational message will be displayed when the order contains a product which will expire within 15 minutes.

Accepts: number, either in minutes or a timestamp based on FoxyCart server time (currently PST)

Example: &expires=15 (expires in 15 minutes) or &expires=1593583199 (expires a second before midnight, June 30th 2020).

Notes: This parameter can be used when setting up subscriptions, but is stripped from products when they are part of a subscription. In other words, once a product with an expires value is successfully paid for as part of a subscription, it will persist on that subscription indefinitely. You can find many tools online for creating timestamps which may be helpful here. If the checkout is submitted with an expired product, the customer will be shown an error and told that an expired product has been removed from the cart. After adding, an expires parameter is set against the product details in the cart JSON object representing the time that it will expire as an epoch timestamp (in seconds). Currently, using an expires value representing time in minutes will cause the same product to be treated as a unique in the cart. Specifying as a timestamp will keep them unified.

weight

Description: Product's per-product weight, used for shipping rate requests.

Default: If left blank, it will inherit this value from the product’s category. If no category selected, will default to the default category's specified weight.

Notes: Supports up to a maximum of three decimal places.

length, width, height

Description: Reserved for future use. If you use them, the data will be stored in the cart JSON, but it will not display on the page.

shipto

Description: Allows you to specify specific ship-to address labels for each cart add.

Default: “me” (meaning, it defaults to the billing contact, and not a separate recipient).

Accepts: Any string. Products will be grouped by shipto value on checkout and in the cart display (if multi-ship is enabled).

Notes: Requires multiship to be enabled for the store.

id

Description: A unique ID per product in the cart, used to make “update” requests to existing products in the cart (as in a JSONP request).

Accepts: Any valid id for a product already in the cart.

Notes: This value is set by FoxyCart, and may be different in different situations. You cannot rely on any product in the cart having the same id from one session to another.

1:, 2:, 3:, 4:, etc…

Description: Prefixing any product option with an integer will group that option with other similarly numbered options, allowing you to add multiple distinct products to the cart in one request.

Default: If no grouping prefix is added, the option will be assumed to be a 1:.

Accepts: Integers from 1-999.

Notes: All product options must be prefixed in order for grouping to happen, and all required options are still required per product.

Example:

<form action="http://YOURDOMAIN.foxycart.com/cart" class="foxycart" method="post">
	<input type="hidden" name="name" value="Fancy Smartphone" />
	<input type="hidden" name="price" value="199.99" />
	<input type="hidden" name="2:name" value="Leather Case for Smartphone" />
	<input type="hidden" name="2:price" value="9.99" />
	<input type="submit" value="Buy a Smartphone and a Leather Case!" />
</form>

CUSTOM Product Options

Description: You may add any additional attributes to any product you’d like. For example, you can add &color=green&size=XXL. If an attribute is passed in with a name not otherwise reserved, it will be added as a product option.

Accepts: Any characters. Custom name attribute limited to 100 characters and the value is limited to 1024 characters.

Please see Coupons and Discounts for a complete discussion of how discounts are applied. The following is for reference only.

discount_quantity_amount

Accepts: A valid discount string.

Notes: Discounts by an amount, based on the quantity of to-be-discounted products. Abbreviated $/qty.

discount_quantity_percentage

Accepts: A valid discount string.

Notes: Discounts by a percentage, based on the quantity of to-be-discounted products. Abbreviated %/qty. Note that the value is based on the average of all applicable products, so applying this discount to differently priced items will result in an averaged discount.

discount_price_amount

Accepts: A valid discount string.

Notes: Discounts by an amount, based on the price of to-be-discounted products. Abbreviated $/$.

discount_price_percentage

Accepts: A valid discount string.

Notes: Discounts by a percentage, based on the price of to-be-discounted products. Abbreviated %/$. Note that the value is based on the average of all applicable products, so applying this discount to differently priced items will result in an averaged discount.

allunits

Also Called: All-Units Quantity Discounts

Description: Discounts the price of all of the products affected by the discount. Also referred to as “volume discounts” or “bulk order discounts.”

Notes: allunits is the default discount type for quantity discounts applied to products. If a discount type isn't specified, allunits is applied. Note that “single” is the default type for coupons.

Examples:

• Scenario: Buy two products, take $2 off of both.
  • Method: discount_quantity_amount
  • Logic: allunits|2-2
    
    
• Scenario: Orders of five or more get a 10% on every item ordered. Orders of 10 or more get a 20% discount on every item ordered.
  • Method: discount_quantity_percentage
  • Logic: allunits|5-10|10-20

incremental

Also Called: Incremental Quantity Discounts

Description: Discounts only the units above the tiers you set.

Notes: Most useful for individual products or many products with the same price. Not useful for $/$ discount methods.

Examples:

• Scenario: Buy two products, get additional products at $5 off. (The first two are not discounted.)
  • Method: discount_quantity_amount
  • Logic: incremental|3-5
    
    
• Scenario: With a quantity of 1-10, all products are at 100% (no discount). With a quantity of 150, 10 products would be at 100%, 40 would be at 90%, 50 would be at 85%, and 50 would be at 80%.
  • Method: discount_quantity_percentage
  • Logic: incremental|11-10|51-15|101-20

repeat

Also Called: Buy One, Get One (BOGO), or “Repeatable Incremental Quantity Discounts”

Description: Repeatable discounts are somewhat similar to incremental discounts, but only have a single tier that repeats. Using this method you can achieve “buy one get one free” types of discounts that repeat (buy 1 get 1, or buy 3 get 3). You can also do something like “buy 3 get the 4th at $5 off”, so buying 5 or 6 would only get a single $5 discount, but buying 8 would get a $10 discount.

Notes: Not useful for $/$ discount methods. Only accepts one tier.

Examples:

• Scenario: Buy one, get one free (100% off).
  • Method: discount_quantity_percentage
  • Logic: repeat|2-100
    
    
• Scenario: Buy 3, get the 4th at 50% off.
  • Method: discount_quantity_percentage
  • Logic: repeat|4-50

single

Also Called: Single Discount, One-Off Discount; or Coupon mode

Description: Unlike the other discount types, the single discount type applies one single discount and not a quantity discount across all products.

Notes: single is the default discount type for coupons, as it makes the most sense in that context. For %/qty and %/$ a single discount type will yield the same discount as allunits. Note that “allunits” is the default discount type for product and category discounts.

Examples:

• Scenario: Buy any 5 products, get $10 off your order.
  • Method: discount_quantity_amount
  • Logic: single|5-10

Example Discount Syntax

discount_method=Discount_Name{discount_type|X-A|Y-B|Z-C}

• discount_method: One of the Discount Methods above.
• Discount_Name: The text label applied to the discount and displayed to the customer in the cart. For example, “Summer Special” or “Local Coupon Discount”. A discount name is required for discounts to apply properly on cart pageloads.
• discount_type: A Discount Type from above. Optional. Will default to single if a coupon, or allunits otherwise.
• X, Y, Z: “Discount Tiers”. The threshold at which the Discount Amount will apply.
• A, B, C: “Discount Amounts”. The amount or percentage discount to apply.

sub_frequency

Description: The frequency of billing (every month, every 3 months, every year, etc.).

Default: None. If this value is empty, the product will not be considered to be a subscription by FoxyCart.

Accepts: An integer (maximum of 3 digits) followed by a single character denoting the unit of time. For example,

• 60d = every 60 days.
• 2w = every two weeks. For date calculations, 1w = 7d.
• 1m = every month. When you use the m unit, FoxyCart will assign billing to the current (or assigned) day of the month, to be repeated every x months. The date will be moved up when necessary; if set to the 31st, it will process on the 30th of months with 30 days (or 28th/29th of February).
• 1y = every year.
• .5m = twice a month. IMPORTANT: The .5 value only works with m (months). This value will setup bi-monthly subscriptions, once on the start date, and again 15 days later. Example: if you set it to start on the 3rd, it will run on the 3rd and the 18th of each month.

Notes: A sub_frequency is required for a product to be treated as a subscription by FoxyCart.

sub_startdate

Description: Subscription start date. Useful if you'd like to offer a free trial period, or to force subscriptions to process on specific dates (the 1st, 15th, 18th, etc.).

Default: If this value is left empty, the subscription will start on the date of the transaction.

Accepts: You can pass through a full date in the YYYYMMDD format or just pass in the day of this month in the DD or D format. If you pass through a day that has already past, it will start on that day next month. For a relative date from today, you can also specify an integer followed by a single character denoting the unit of time.

• YYYYMMDD = Example: 20150131 = January, 31 2015.
• DD = Example: 10 = will run on the 10th of this month or the 10th of next month if today's date is after the 10th.
• D = Same as DD.
• 60d = 60 days from today.
• 2w = 2 weeks from today. For date calculations, 1w = 7d.
• 1m = 1 month from today.
• 1y = 1 year from today.

Notes:

• This is an optional field. Not indicating a “sub_startdate” would automatically assign it its default value.
• Subscription start and end dates are not currently tied to a store's timezone settings. Test your start and end dates thoroughly or ask in the forum if you have questions about them.
• The day of the sub_startdate will generally be used for all subsequent billing attempts when used with a monthly frequency, but in cases where the date doesn't exist in a month, it will be moved ahead for that month. So if you have a subscription with a start date on Jan-31, it will run on the Feb-28, Mar-31, Apr-30, and etc.

sub_enddate

Description: The date a subscription should end.

Accepts: YYYYMMDD formatted date value in the future. For a relative date from today, you can also specify an integer followed by a single character denoting the unit of time.

• YYYYMMDD = Example: 20150131 = January, 31 2015.
• 60d = 60 days from today.
• 2w = 2 weeks from today. For date calculations, 1w = 7d.
• 1m = 1 month from today.
• 1y = 1 year from today.

Notes:

• This is an optional field. Not indicating a “sub_enddate” would make the subscription run indefinitely.
• If a subscription is scheduled to run on the 4th, and the sub_enddate is the 4th, the subscription will end before it is billed to the customer. So, this parameter should be set to a date after the date you want the last transaction in the subscription to run. For example, if you have a monthly subscription starting on January 1st, 2015 that is supposed to run for six months and then stop, set sub_endate to 20150602 (June 2nd, 2015) so that the transaction on June 1st is not cancelled by the end date.

sub_token

Description: Unique URL per subscription for loading your subscription up into a cart and modifying its contents. Very useful when used in conjunction with the redirect feature as you can load up a customer's subscription and then redirect them back to your product page so they can add something to it.

Accepts: A valid sub_token (retrieved from the API, XML datafeeds, or admin).

Notes: When a sub_token is loaded by the customer, the customer's cart is emptied and replaced by the content of the subscription represented by the sub_token.

sub_cancel

Description: A flag indicating the subscription in question (as retrieved from the sub_token) should be cancelled. By “canceling”, the subscription gets a sub_enddate set, on which day it will be ended and made inactive.

Accepts: true to set the end date to tomorrow, or next_transaction_date to set the end date to the subscriptions next transaction date.

Notes:

• Requires a sub_token to function. Otherwise there will not be any subscription to cancel.
• Foxy native email receipts will include links for the customer to be able to update or cancel their subscription. The cancel link will by default be set to sub_cancel=true, so the subscription will end the following day. If you want to instead default these links to cancel on the next transaction date, you can edit the language strings for your store. On the “language” page of the Foxy administration, expand the “email” section and search for “sub_cancel=true”. There will be two instances of it - simply update true to next_transaction_date to change the links.

Product option modifiers allow you to modify the price, weight, code, or category when another option is set. Modifiers are placed inside curly brackets ({}) at the end of your product option, and can add to (+), subtract from (-), or set (:) new values to the modified option. Multiple modifiers can be chained together with the “pipe” symbol (|), like value=“S{p+1.50|w-1|c:01a|y:teeny_category}”. When using cart validation it is recommended to set your initial values high then modify down, rather than the other way around. See the validation docs for explanation. Note: if you're working with a product code modifier, be sure your code input comes before your product option that modifies it. Modifiers cannot be applied to standard product options (ie: price or name).

p

Modifies: Price

Increasing: &size=Small{p+5}

Decreasing: &size=Small{p-5}

Setting: &size=Small{p:5}

Notes: If working with multicurrency, you may need to append the currency code to the price as required, such as {p+5CAD}. If no currency code is specified, it's assumed the price is in the store currency.

w

Modifies: Weight. Behaves like the price modifier above.

c

Modifies: Code

Setting: &code=foo&size=Small{c:bar} would yield a code of bar

Appending: &code=foo&size=Small{c+bar} would yield a code of foobar

y

Modifies: Category

Setting: &category=foo&size=Small{y:bar} would yield a category of bar

Notes: This can be especially handy in donation forms that allow both single and recurring donations.

Transaction Options are parameters included within cart requests that are not product-specific. Instead, they impact the entire cart or session. In the same way as the Product Options above, Transaction Options are included within the cart request, either as an additional parameter in the add to cart link, or as an input within a form.

cart

Description: The cart parameter allows for various behaviors to be performed when the cart is requested. Note, the cart parameter is separate from the /cart portion of the cart URL. Within an add to cart link it should be separate like /cart?cart=view, or specified as a hidden input in an add to cart form.

Accepts:

• add: The default cart action. If you don't include a cart input, add is assumed.
• view: Displays the cart (if output=html) or returns the cart (if output=json) without adding any products to the cart. Custom session values can be added on a cart=view request.
• checkout: Redirects to the checkout page immediately. Any “add to cart” requests are processed first, so you can add a product to the cart and go immediately to the checkout.
• checkout: With fc_payment_method=paypal_ec Redirects to PayPal Express Checkout with reference transactions immediately. Any “add to cart” requests are processed first, so you can add a product to the cart and go immediately to the checkout.
• checkout_paypal_express: Redirects to PayPal for the legacy Express Checkout immediately. Any “add to cart” requests are processed first, so you can add a product to the cart and go immediately to the checkout.
• updateinfo: Redirects to the checkout page with the updateinfo flag set, allowing the customer to update their billing information without actually buying anything. This will empty the customer's cart. More info about the ''updateinfo'' functionality.
• empty: Deprecated. Will be removed in a future release. Use the empty parameter instead.

Default: view

h:…
(CUSTOM Session Values)

Description: “Session values”, as the name suggests, are added to the customer's session, and are not tied to products. Values stored in session values are available in the JSON, as well as the XML datafeed upon a successful transaction.

Accepts: Any h:name=value pair. The h: prefix on the name makes it a session value as opposed to a custom product option.

Notes: Session values are useful for synching custom fields between FoxyCart and your own system, or using information from an external system to manipulate FoxyCart. For example, you could pass in a customer ID value that would sync back to your own database. Or a referrer or affiliate ID could be added to the session and then processed via the XML datafeed upon a completed transaction. Maximum length for the value is 700 characters.

empty

Description: This will clear the contents of the cart. If products are added in the same request, the cart will be emptied and then the products will be added.

Accepts:

• true: Empties the cart, including all custom session values, coupons, customer address and prepopulation values, shipping selections, etc.
• reset: Does all of the above but also resets the cookie. The use case for this is uncommon, so in general you should use the true instead of the reset value.

coupon

Description: Adds one or more coupon codes directly to the cart.

Accepts: Any valid coupon codes, separated by a comma.

Notes: If an invalid code is added, or a code is re-added, an error may display on the cart. As with all coupon codes, once a code is added it will remain for the life of the session or until removed. This can be useful if you want to have a link with a coupon code that doesn't actually add a product to the cart but instead redirects to a order page or the website's homepage. Check the redirect option below for more.

Notes: If you're using the link and form validation, do not sign the coupon value.

redirect

Description: Immediately redirects the user to a page on cart load, such as &redirect=index.html.

Accepts: path/to/file.ext

Notes: For security reasons, the path must be at the store's domain (as entered in the store's FoxyCart settings). ie. You cannot redirect to example.org/path/to/file.ext if your store's domain in FoxyCart is example.com. Additionally, you may need to URL encode any ? and & symbols in a redirection path.

locale

Experimental Functionality: This feature will be further tested and documented. Please refer to FoxyCart's multicurrency documentation for more info.

Description: Sets the currency for the cart. Converts any existing items in the cart from the current currency (the store's default) to the newly specified currency.

Accepts: FoxyCart will attempt to match a locale in the following order. If no locale is matched, it will continue to the next option and attempt a match there.

1. A full locale code in the format of 2 character language code, followed by an underscore and a two character territory, such as en_US (US, English) or es_MX (Mexico, Spanish).
2. A value prefixed by the h:lang value: Whatever you pass through as the locale value will be prefixed with the value currently set in h:lang, concatenated with an underscore. So if you have set h:lang=es and pass through locale=MX, the session will attempt to set the locale to es_MX.
3. A value prefixed by en_: If the above don't match, the locale value will be prefixed with en_ in an attempt to match a valid locale.
4. Case-insensitive locale match

Notes: Changing the locale will empty the cart of its products. Products added in the same request will work fine, however.

template_set

Description: Used to specify a specific template set to apply to this cart session

Accepts: Any valid template set code

Notes: If a template set is applied which changes the locale of the cart session, any existing products will be removed from the cart. Products added in the same request will be added normally.

output

Description: Specify the output format for the cart request.

Accepts:

• html
• json (will load the JSON cart object)

Default: html

callback

Description: Used to make an output=json request return a JSONP (instead of JSON) response. This will typically be used with a javascript library like jQuery.

fc_auth_token

Description: Used with Single Sign-On (SSO) to allow a customer to proceed through to the checkout.

h:shipto_residential

Description: Since shipping rates can be returned from the cart (where the company address field isn't entered), and since the difference between residential and commercial shipping rates can be important, you can set this to true or false to override the setting from the shipping section of the FoxyCart admin.

Accepts: true or false

Default: n/a. Shipping rates are determined in the shipping settings in the FoxyCart admin.

h:bypass_maintenance_mode

Description: You can set this to true to override the maintenance mode for your store (and view the checkout normally).

Accepts: true

Default: false

utm_source, utm_medium, utm_campaign, utm_term, utm_content, _ke

Description: URL parameters for Google Analytics custom campaigns and Klayvio. When specified as part of an add to cart, they'll be included in the next page load of either the cart or the checkout.

Notes: These values should not be encrypted when using link/form encryption, and they must be passed as URL parameters - passing them within the hash is not supported. The values are not stored in the session at all - they're just used on the resulting page load of the add to cart action.

If you're considering pre-populating customer info on the checkout you should probably look at using the API and Single Sign-On (SSO) as well, as those two methods will provide more power and flexibility. All of the following values are optional, and can be passed in individually.

customer_email

Notes: Must be a properly formatted email address.

billing_first_name

shipping_first_name

billing_last_name

shipping_last_name

billing_address1

shipping_address1

billing_address2

shipping_address2

billing_phone

shipping_phone

billing_company

shipping_company

billing_city

shipping_city

billing_postal_code

shipping_postal_code

Notes: No validation is performed on values passed in.

use_different_addresses

Notes: In order to pass in both shipping and billing information, this must also be passed in with a value of 1 so the checkbox on the checkout will be properly checked to display both the billing and shipping information.

billing_region

shipping_region

Notes: Accepts 2-character ISO codes for the state or province of the country determined by the customer's IP address, unless a country is specifically set using pre-population.

billing_country

shipping_country

Notes: Accepts 2-character ISO codes for the country.

x:option_name
__option_name

Description: Any parameter passed to the cart prefixed with an x: or a __ (double underscore) will be entirely ignored by FoxyCart.

Notes: This can be useful if you have “dummy” form fields used only for AJAX purposes or to set hidden inputs.

FoxyCart uses twig and twig.js as a template language so you can completely customize everything about your checkout experience. Listed below is all the data which is exposed to the templates and also available in JavaScript in the FC.json variable.

cart_cancel_and_continue_link

Description: URL for continuing back to the store from the cart.

cart_config_hash

Description: Used to validate the locale storage version of FC.json.config is up to date.

cart_is_fullpage

Description: true or false depending if the cart is the full page cart or not

context

Description: Either cart, checkout or receipt. Used for configuring various display and functionality concerns. cart represents both Sidecart and full page cart versions.

coupons
coupons.{coupon_code}
coupons.{coupon_code}.amount
coupons.{coupon_code}.id
coupons.{coupon_code}.is_applied
coupons.{coupon_code}.is_taxable
coupons.{coupon_code}.name

Description: Coupons associated with this cart. The {coupon_code} is the code value used by the customer to add the coupon.

Note: If the cart features codes that are shared between multiple coupons (for coupons that have the “Shared Codes Allowed?” checkbox checked), these coupons will become a nested array of coupons, with the {coupon_code} still as the key. The attributes within each array item will still be the same amount, id, is_applied, is_taxable and name.

"coupons": {
    "code1a": {
        "amount": -1,
        "id": "4704984",
        "is_applied": true,
        "is_taxable": false,
        "name": "Coupon 2"
    },
    "code2a": [
        {
            "amount": -1,
            "id": "4704985",
            "is_applied": true,
            "is_taxable": false,
            "name": "Coupon 1"
        },
        {
            "amount": -1,
            "id": "4704988",
            "is_applied": true,
            "is_taxable": false,
            "name": "Coupon 2"
        }
    ]
}

custom_fields
custom_fields.{name}
custom_fields.{name}.is_hidden
custom_fields.{name}.value

Description: The custom fields associated with this transaction. The is_hidden bit will be true if the custom fields were passed in via the h: prefix. The {name} is the value of the name assigned to this custom field.

expires_in

Description: The time in seconds until the first product in the cart expires

future_coupons
future_coupons.{coupon_code}
future_coupons.{coupon_code}.amount
future_coupons.{coupon_code}.id
future_coupons.{coupon_code}.is_applied
future_coupons.{coupon_code}.name

Description: Same as coupons above, but for products with a start date or next transaction date in the future.

future_subscription_totals_by_date
future_subscription_totals_by_date.total
future_subscription_totals_by_date.total_item_price
future_subscription_totals_by_date.total_shipping
future_subscription_totals_by_date.total_tax
future_subscription_totals_by_date.total_weight

Description: The totals for subscription products with a start date or next transaction date in the are grouped together here for the cart display.

has_eligible_coupons

Description: If the cart contains products which can have a coupon applied to them.

has_future_products

Description: If the cart contains products with a start date or a next transaction in the future (a “future product”).

has_future_shipping

Description: If the cart contains future products from categories which support shipping.

has_live_rate_shippable_products

Description: If the cart contains products from categories which support live shipping rates.

has_location_dependant_taxes

Description: If the cart contains products from categories which have taxes based on the customer's location. This is used for handling third party payment options such as PayPal Express and Amazon FPS.

has_multiship

Description: If the store has multiship turned on.

has_product_images

Description: If any of the products in the cart took advantage of the image option.

has_shippable_products

Description: If the cart contains products from categories which support shipping.

has_subscriptions

Description: If the cart contains subscription products.

has_taxes

Description: If the cart contains products from categories which have taxes applied to them.

is_future_shipping_only

Description: If all of the products in the cart are future products, this tells the system the shipping calculations will only be for future products.

is_new_subscription

Description: If the cart contains a new subscription

is_subscription_cancel

Description: If this transaction is for canceling an existing active subscription.

is_subscription_modification

Description: If this transaction is currently modifying an existing active subscription. This will usually mean there are products in the cart which will charge in the future.

is_updateinfo

Description: If cart=updateinfo.

item_count

Description: The sum total of all the product quantities in the cart.

items[]

Description: An array of all the products in the cart.

items[].alt_name

Used in the alt attribute of the product link.

items[].base_price

Product price before product option modifiers.

items[].category

Product category code.

items[].code

Product code or sku.

items[].delivery_type

The delivery type of this product.

items[].downloadable_id

If this product is a downloadable, this is the downloadable id for it.

items[].expires

The timestamp for when this product expires.

items[].height

Reserved for future use.

items[].id

Unique internal id for this product.

items[].image

The image url for this product.

items[].is_parent

If this product is a parent product or not

items[].item_number

Used for organizing item display and managing the product update process.

items[].length

Reserved for future use.

items[].multiship

The multiship group number used for organizing products into shipments.

items[].name

The product name.

items[].options[]

Description: Array or product options for this product.

items[].options[].class

The option name stripped of anything but letters, numbers, dashes and underscores so it can be used as a html class attribute.

items[].options[].name

The product option name.

items[].options[].value

The product option value.

items[].price

The price extension of these products (price_each * quantity)

items[].price_each

The actual price of an individual product after product option modifiers.

items[].quantity

The quantity of this product in the cart.

items[].quantity_max

The maximum quantity allowed in the cart for this product.

items[].quantity_min

The minimum quantity allowed in the cart for this product.

items[].shipto

The shipto name of this product used for multiship.

items[].sub_enddate

The end date of this subscription product.

items[].sub_frequency

The frequency of this subscription product.

items[].sub_nextdate

The next date this subscription product will process.

items[].sub_startdate

The start date of this subscription product.

items[].url

The url of this product.

items[].weight

The weight extension of the this product (weight_each * quantity)

items[].weight_each

The weight of an individual product.

items[].width

Reserved for future use.

loading_coupons
loading_quantity
loading_shipping_results
loading_taxes

Description: Used for determining if a loading animation should currently be displayed.

locale_code

Description: The locale code for this cart such as en_US

locale_info

Description: This includes all of the data output by PHP's localeconv() including currency symbols, decimal point character, and thousands separator.

messages

Description: Used for displaying error, warning, and information messages in the cart.

messages.errors[]

Description: An array of error messages.

messages.errors[].context

The context of this error message which often relates to a form input.

messages.errors[].message

The content of the error message. Often times this will be blank as the error message is directly part of the template as a language string.

messages.info[]

Description: An array of informational messages.

messages.info[].context

The context of this informational message.

messages.info[].message

The content of the informational message.

messages.warnings[]

Description: An array of warning messages.

messages.warnings[].context

The context of this warning message.

messages.warnings[].message

The content of this warning message.

multiship_data

Description: (Currently empty for the cart, may be added in the future)

payment_info_required

Description: True if payment information is required for this transaction (order total > 0 for an order and not doing a subscription cancel).

session_id

Description: The session id of this cart.

session_name

Description: The name of the FoxyCart session.

shipping_address

Description: Container for the shipping address information.

shipping_address.address1

Address 1

shipping_address.address2

Address 2

shipping_address.address_name

The address name of this address (used mainly for multiship)

shipping_address.city

City

shipping_address.city_option_selected

The city, region put togther as a string used in the select option.

shipping_address.city_options

Description: Array of options returned from the postal code lookup.

shipping_address.city_options.city

City

shipping_address.city_options.region

Region (such as state or province)

shipping_address.company

Company

shipping_address.country

Two character country code

shipping_address.country_name

Country name

shipping_address.first_name

First Name

shipping_address.last_name

Last Name

shipping_address.phone

Phone

shipping_address.postal_code

Postal code

shipping_address.prefix

Prefix (used for multiship)

shipping_address.region

State or Province code

shipping_address.region_label

Label for this region (such as state or province)

shipping_address.region_name

State or province name.

shipping_address.shipping_results[]

Description: A result of calculating live shipping rates.

shipping_address.shipping_results[].method

This shipping method (USPS, UPS, FedEx, etc).

shipping_address.shipping_results[].price

The quoted price for this shipping service.

shipping_address.shipping_results[].service_id

The service id used by this shipping method for this service.

shipping_address.shipping_results[].service_name

The name of this shipping service.

shipping_address.shipping_service_description

The description of this shipping service.

shipping_address.shipping_service_id

The shipping service id the service the customer selected.

shipping_address.taxes[]

Description: An array of taxes associated with this shipping address.

shipping_address.taxes[].amount

Amount of this tax.

shipping_address.taxes[].applies_to_handling

Whether or not this tax applies to handling fees.

shipping_address.taxes[].applies_to_shipping

Whether or not this tax applies to shipping costs.

shipping_address.taxes[].default_amount

The default amount before being applied to a specific location.

shipping_address.taxes[].is_error

If this tax has an error.

shipping_address.taxes[].is_live

If this tax is live.

shipping_address.taxes[].name

The name of this tax.

shipping_address.taxes[].rate

The tax rate.

shipping_address.taxes[].tax_id

The internal id of this tax.

shipping_address.total_future_shipping

The total amount of future shipping costs for the products being sent to this address.

shipping_address.total_shipping

The total shipping costs for the products being sent to this address.

shipping_address.total_tax

The total tax for the products being sent to this address.

shipping_address.type

The type for this address (either billing or shipping)

shipping_and_handling_label

Description: The label describing the shipping applied to this order.

show_address_entry

Description: Used to determine if the cart address entry form should be displayed.

show_amazon_fps_payment_option

Description: Used for determining if the amazon payment button should be shown. It will not be shown if there are subscriptions in the cart.

show_coupon_input_button

Description: Used for determining if the coupon input button should be shown.

show_multiship_details

Description: Used to toggle the multiship details.

show_paypal_express_payment_option

Description: Used for determining if the Paypal payment button should be shown.

show_shipping_tbd

Description: Used for determining if live shipping rates haven't yet been calculated so a “TBD” indicator is displayed instead.

store_id

Description: The FoxyCart store id for this store.

template_set

Description: The code for the cart's current template set

total_discount

Description: The total coupon discount applied to this transaction.

total_future_item_price

Description: The total price of the future items in the cart.

total_future_shipping

Description: The total amount of the shipping costs assigned to future products in the cart.

total_future_weight_shippable

Description: The total weight of the future shipable products in the cart.

total_item_price

Description: The total price of the items in the cart.

total_order

Description: The order total

total_shipping

Description: The shipping total

total_tax

Description: The tax total

total_weight

Description: The total product weight.

total_weight_shippable

Description: The total weight of the shippable products in the cart.

transaction_id

Description: The FoxyCart transaction id for the contents of the cart.

cache_path

Description: Path used for caching images in the FoxyCart system.

cart_config_hash

Description: Used to validate the locale storage version of FC.json.config is up to date.

cdn_base_path

Description: The base path of your store's files served via the CDN.

cdn_static_path

Description: The base path of static files served via the CDN.

css_file

Description: The full path to the versioned store-specific stylesheet served by the CDN.

currency_format

Description: The currency format configured for your store and use for twig money formatting.

lang

Description: All language strings in FoxyCart are completely customizable. We start with a base language configuration and then you can customize them individually from there.

lang.{code}
lang.{code}…

Description: You can view all language strings used on the cart by viewing FC.json.config.lang in your browser's web console.

locations

Description: A complete listing of all valid country codes and state/provinces within those countries used by our find-as-you type auto complete (FoxyComplete) country and region lookup system.

locations.{country_code}
locations.{country_code}…

Description: Locations are grouped by their 2 character ISO country code.

locations.{country_code}.active

If this country is actively being used by the FoxyComplete system.

locations.{country_code}.alt

Alternative spellings or local spellings of this location name.

locations.{country_code}.boost

Used to give certain spellings a boost over others.

locations.{country_code}.cc2

ISO 3166-1 alpha-2 code for this country.

locations.{country_code}.cc3

ISO 3166-1 alpha-3 code for this country.

locations.{country_code}.ccnum

ISO 3166-1 numeric code for this country.

locations.{country_code}.cn

Country name (currently in english).

locations.{country_code}.pc

Description: Postal Code format details.

locations.{country_code}.pc.int

If the postal code is numeric only.

locations.{country_code}.pc.lang

The language key string for the description of this postal code.

locations.{country_code}.pc.regex

The regex pattern this postal code fits in for validation purposes.

locations.{country_code}.pc.req

Whether or not the postal code is required.

locations.{country_code}.pc.search

Whether or not this country supports a postal-code based search.

locations.{country_code}.r

Description: Region details for this country.

locations.{country_code}.r.lang

The language key string for name of this country's regions such as “state.”

locations.{country_code}.r.options.{region code}

Description: Region information organized by two character ISO code.

locations.{country_code}.r.options.{region code}.active

If this region is actively being used by the FoxyComplete system.

locations.{country_code}.r.options.{region code}.alt

Alternative spellings or local spellings of this region name.

locations.{country_code}.r.options.{region code}.boost

Used to give certain spellings a boost over others.

locations.{country_code}.r.options.{region code}.c

ISO 3166-1 alpha-2 code for this country.

locations.{country_code}.r.options.{region code}.n

Region name (currently in english).

locations.{country_code}.r.options.{region code}.req

If regions are required for this country.

locations_billing

Description: Locations used for billing address information only (see locations)

locations_shipping

Description: Locations used for shipping address information only (see locations)

paypal_checkout_button_url

Description: Locale specific PayPal payment button URL.

post_url

Description: URL for posting cart and checkout forms.

store_domain

Description: This FoxyCart stores FoxyCart store domain (the example part of example.foxycart.com).

store_logo_url

Description: Your store logo url as configured in the FoxyCart admin.

store_name

Description: Your FoxyCart store name as configured in the FoxyCart admin.

store_url

Description: Your store's website URL as configured in the FoxyCart admin.

template_config

Description: All of the settings configured in the FoxyCart admin under the configuration menu will be available here for you to use within your twig template customizations.

template_config.analytics_config

Description: (UNDER CONSTRUCTION): A place to automatically configure your analytics tools.

template_config.analytics_config.google_analytics

Description: Configuration settings for your Google Analytics account.

template_config.analytics_config.google_analytics.account_id

Your Google Analytics acccount id

template_config.analytics_config.google_analytics.account_key

Your Google Analytics acccount key

template_config.analytics_config.google_analytics.usage

Configuration for how this setting is being used.

template_config.analytics_config.segment_io

Description: Configuration settings for your Segment.io account.

template_config.analytics_config.segment_io.account_key

Your Segment.io acccount key

template_config.analytics_config.segment_io.usage

Configuration for how this setting is being used.

template_config.analytics_config.usage

Configuration for how this setting is being used.

template_config.cart_display_config

Description: Settings for controlling the display details of your cart.

template_config.cart_display_config.show_product_category

Whether or not to show the product category code in the line item details.

template_config.cart_display_config.show_product_code

Whether or not to show the product code in the line item details.

template_config.cart_display_config.show_product_options

Whether or not to show the product options in the line item details.

template_config.cart_display_config.show_product_weight

Whether or not to show the product weight in the line item details.

template_config.cart_display_config.usage

Whether or not the cart display config has been set or if defaults are in use.

template_config.checkout_type

Description: Either default_account, default_guest, guest_only, or account_only for determing if your checkout will accept guest checkouts or required named accounts and which one will be the default action.

template_config.colors

Description: This configuration allows you to specify the main colors of your website and our system will adjust the CSS using SASS as needed to incorporate your colors into our template designs.

template_config.colors.primary
colors.secondary
colors.tertiary

The primary, secondary, and tertiary colors for your website.

template_config.colors.usage

Whether or not this configuration setting is being used.

template_config.csc_requirements

Description: Settings for how you'd like to require the Card Security Code (CSC) for your website. Values include all_cards, sso_only (Single Sign On only), new_cards_only (do not require for saved cards).

template_config.custom_checkout_field_requirements

Description: Configuration for displaying and requiring various checkout fields and features.

template_config.custom_checkout_field_requirements.billing_address1
template_config.custom_checkout_field_requirements.billing_address2
template_config.custom_checkout_field_requirements.billing_city
template_config.custom_checkout_field_requirements.billing_company
template_config.custom_checkout_field_requirements.billing_country
template_config.custom_checkout_field_requirements.billing_first_name
template_config.custom_checkout_field_requirements.billing_last_name
template_config.custom_checkout_field_requirements.billing_phone
template_config.custom_checkout_field_requirements.billing_postal_code
template_config.custom_checkout_field_requirements.billing_region

These can be set to either hidden, required, optional, or default (in the case of billing_region)

template_config.custom_checkout_field_requirements.cart_controls

Whether or not to allow cart controls on the checkout page.

template_config.custom_checkout_field_requirements.coupon_entry

Whether or not to allow the coupon entry form on the checkout page.

template_config.custom_config

Description: This is where you can put your own custom configuration values for your twig templates. This might be helpful if you want to hard code your templates with some logic and change the display outcome by just adjusting the values here.

template_config.custom_script_values

Description: Used for setting custom JavaScript or CSS elements to be used in the default template.

template_config.custom_script_values.footer

If you have custom JavaScript you'd like to add above the </body> tag for your cart, checkout and receipt templates, put that here. You can use it for conversion tracking scripts by checking the first_receipt_display variable. Full twig syntax is supported here.

template_config.custom_script_values.header

If you have custom CSS (or JavaScript, though the footer is a better place for that) you'd like to add to the <head> tag for your cart, checkout and receipt templates, put that here. Full twig syntax is supported here.

template_config.custom_script_values.checkout_fields

If you to add custom fields to your store's checkout template, add HTML here. These will be inside the <form> tag on the checkout page and will submit with the rest of the checkout form and be recorded as custom fields on the transaction. Full twig syntax is supported here.

template_config.debug

Description: Turn this on to see debugging output in your web browser's console log.

template_config.debug.usage

How this setting is currently being used.

template_config.foxycomplete

Description: Our country and region auto completion system which lets users find locations as they type instead of having to select from a huge list of options.

template_config.foxycomplete.combobox_close

The icon used for closing the location combo box.

template_config.foxycomplete.combobox_open

The icon used for opening the location combo box.

template_config.foxycomplete.show_combobox

Whether or not to show the location combo box.

template_config.foxycomplete.show_flags

Whether or not to show the country flags.

template_config.foxycomplete.usage

Configure how this feature is being used.

template_config.newsletter_subscribe

Description: This allows you to easily add a “Subscribe Me” checkbox to your checkout template so you can use that value as a custom field in the transaction datafeed later.

template_config.newsletter_subscribe.usage

How this setting is configured.

template_config.ssl_receipt

Description: If you require the receipt page to be loaded over HTTPS, turn this feature on.

template_config.supported_payment_cards

Description: An array of the accepted payment cards by your store such as Visa, MasterCard, etc. This will control which card logos are shown on the checkout page.

template_config.tos_checkbox_settings

Description: Use this setting to easily add a terms of service checkbox to your checkout page.

template_config.tos_checkbox_settings.initial_state

Whether or not the terms of service checkbox is checked by default.

template_config.tos_checkbox_settings.url

The URL to your terms of service document.

template_config.tos_checkbox_settings.usage

How this setting is configured (none, required or optional).

template_config.use_checkout_confirmation_window

Description: (UNDER CONSTRUCTION) A popup window for customers to confirm their order before submitting it.

template_config.use_checkout_confirmation_window.usage

Configure how this feature is being used.

weight_uom

Description: The unit of measure used for calculating shipping weights.

with_controls

Description: Whether or not the current display output includes cart controls such as quantity and coupon entry fields.

The checkout view data in FC.json includes everything in the cart including the following values:

anonymous_checkout_selected

Description: Used for determing if a customer opted to check out anonymously.

auth_token_is_valid

Description: Used for determining if the Single Sign On (SSO) authorization token is valid.

authentication_is_in_progress

Description: If the customer is currently authenticating.

authentication_is_not_successful

Description: If customer authentication failed.

authentication_is_successful

Description: If customer authentication is successful.

billing_address

Description: (See cart shipping_address)

cc_cvv2

Description: Credit card Card Security Code for new cards.

cc_cvv2_saved

Description: Credit card Card Security Code for existing cards.

cc_exp_month

Description: Credit card expiration date month.

cc_exp_year

Description: Credit card expiration date year.

cc_number

Description: Credit card number.

cc_number_masked

Description: Masked credit card number.

cc_type

Description: Credit card type (Visa, MasterCard, Amex, etc)

change_password

Description: If the customer as opted to change their password.

checkout_date

Description: The date this checkout took place.

checkout_type

Description: The type of checkout taking place which can be either default_account, default_guest, guest_only, account_only

continue_url

Description: The URL used on the receipt to continue back to your store's website.

create_account

Description: Whether or not the customer chose to create an account during checkout.

customer_email

Description: The customer email address.

customer_id_encoded

Description: Used for determining which customer just logged in.

customer_is_authenticated

Description: Used for determining if the current customer is authenticated via Single Sign On (SSO).

customer_password

Description: The customer password entered by the user.

email_is_checking

Description: If the checkout is currently checking to see if the email address given belongs to an existing customer.

email_is_found

Description: Indicates if the email address given belongs to an existing customer.

email_is_valid

Description: Indicates if the email address given is valid.

fc_auth_token

Description: The Single Sign On (SSO) authentication token.

fc_customer_id

Description: The Single Sign On (SSO) passed in customer id.

first_receipt_display

Description: If the receipt is being displayed for the very first time which can be helpful for displaying specific conversion tracking code.

force_password_reset

Description: If the customer requires a password reset because they logged in with a temporary password.

force_saved_account

Description: If the cart contains subscriptions, the customer will be forced to checkout as a named account.

geoip

Description: Used in the emails sent to store administrators to display the GEO IP lookup details for the country based on the ip address of the customer checking out. This will not be available for the checkout or receipt context.

has_discounts

Description: If the cart contains coupon discounts.

has_downloadables

Description: If the cart contains downloadable products.

has_saved_cc

Description: If the customer has a saved credit card.

has_visible_custom_fields

Description: If the checkout has custom fields which are not hidden custom fields.

hosted_payment_gateways

Description: Array of hosted payment gateways available for this checkout.

hosted_payment_gateways.lang_pay_with

Language and logo used on the checkout page to tell the customer they can pay with this method.

hosted_payment_gateways.lang_payment_method

Additional information for the customer indicating what happens next, such as if they will be redirected to another site to confirm payment.

hosted_payment_gateways.supports_subscriptions

Wehther or not this hosted payment method supports subscriptions.

hosted_payment_gateways.type

The type of this hosted solution such as bitpay, dwolla, etc.

html_downloadable_links

Description: The links for downloading products purchased as FoxyCart downloadables.

ip_address

Description: The ip address of the customer.

is_anonymous

Description: If the customer checked out as an anonymous user.

is_uoe

Description: If the customer is currently logged in using Unified Order Entry.

loading_submit

Description: Used for determining if an animation should be displayed near the submit button.

multiship_data

Description: Array of shipments for each multiship customer shipment (in additiona to address data found in shipping_address)

multiship_data.address_name

The name given to this shipto address. This will be the same as the “shipto” value in the cart.

multiship_data.checkout_total_tax

The tax total for this shipment used during checkout.

multiship_data.custom_fields

Custom fields for this shipment.

multiship_data.has_live_rate_shippable_products

Whether or not this shipment has products from a category which uses live shipping rates.

multiship_data.has_shipping_or_handling_cost

Whether or not this shipment has products from a category which has any shipping or handling costs.

multiship_data.has_visible_custom_fields

Whether or not any of the custom fields in this shipment are visable.

multiship_data.number

The shipto number used for visual organization.

multiship_data.total_future_shipping

The total future shipping amount in this shipment

multiship_data.total_item_price

The total amount of all the items in this shipment

multiship_data.total_price

The total price in this shipment

multiship_data.total_shipping

The total shipping amount in this shipment

multiship_data.total_tax

The total tax amount in this shipment

new_customer_password

Description: When creating a new customer or changing an existing password, this will contain the new password entered by the customer.

order_id

Description: The transaction id of this order.

password_expired

Description: True if the password this customer used has expired, such as when using a temporary password.

payer_id

Description: Used by 3D Secure systems.

payment_is_pending

Description: If the customer checked out with a hosted gateway which first marks the payment as pending, this boolean can be used for special messaging to the customer on the receipt.

payment_method_type

Description: Either plastic_saved, plastic_new, or the type of the hosted payment gateway being used.

payment_type

Description: The payment type usually being plastic, hosted (as in a hosted payment gateway), purchase_order, paypal or other.

processor_response

Description: The payment gateway response value used on the receipt.

purchase_order

Description: The purchase order value submitted by the customer.

receipt_url

Description: The connonical url of the transaction receipt.

required_fields

Description: Array of required field names as configured in the FoxyCart admin template configuration page.

shipping_and_handling_label

Description: The default label for the shipping and/or handling fees charged for this order.

show_message_for_testing

Description: Used to indicate if a testing informational message is to be displayed. This can be useful for styling purposes and can be triggered by passing in a fc_show_info custom field.

status

Description: Used in some situations such as with hosted gateways to specify the status of the current transaction. Values include approved, authorized, declined, pending, or rejected.

subscriptions

Description: Array of subscription data for this transaction.

subscriptions.description

The textual description of this subscription including the frequency.

subscriptions.sub_token_url

The subscription token url which can be used by the customer to modify or cancel this subscription or by the store to adjust the subscription via the API.

subscriptions.html_links

The links needed by the customer to modify or cancel this subscription in html format.

subscriptions.text_links

The links needed by the customer to modify or cancel this subscription in text format.

temporary_password_sent

Description: Indicating of the temporary password has been sent to the customer.

text_downloadable_links

Description: Text links for downloading the products purchased.

timestamp

Description: Used by the Single Sign On (SSO) feature to ensure the token is only valid for a specific amount of time.

token

Description: Used by 3D Secure systems.

tos_agreement

Description: The state of the terms of service checkbox, if being used by the checkout.

use_alternate_shipping_address

Description: A boolean state of the checkbox for using an alternate shipping address other than the billing address.

use_different_addresses

Description: The state of the checkbox for using an alternate shipping address other than the billing address.

utils

Description: Custom twig macros we've added which we've also ported to twig.js

utils.get_error_string

Get a specific error string from the array of errors by context key.

utils.get_info_string

Get a specific info string from the array of informational strings by context key.

utils.shipping_results

Macro for formatting shipping rate results into radio buttons.

utils.use_different_addresses

Macro for displaying the use alternate address checkbox.

The checkout config view data in FC.json.config includes everything in the cart including the following values:

alert_test_gateway

Description: Used for FoxyCart test stores.

base_directory

Description: Used for determing the correct base directory for this store version.

cc_expiration_months

Description: An array of months for displaying the credit card expiration month select box.

cc_expiration_years

Description: An array of years for displaying the credit card expiration year select box.

has_multiple_payment_options

Description: A boolean used for display logic when there are more than one payment options enabled by the store for the checkout page.

lang

Description: Includes language strings from cart config lang as well as additional strings for checkout, email and receipt contexts.

supports_pay_with_plastic

Description: A boolean used for display logic on the checkout page for if the store supports paying with a debit or credit card.

supports_purchase_order

Description: A boolean used for dispaly logic on the checkout page for if the store supports paying by purchase order.

The email view data in FC.json.config includes everything in the cart and checkout including the following values:

days_since_first_failed_transaction

Description: The number of days since the subscription in this email first failed, used for dunning reminder emails.

is_order

Description: If this email is for a normal transaction

is_expiring_payment_reminder

Description: If this email is for an expiring payment methods reminder email triggered by the dunning functionality

is_subscription_dunning_cancellation

Description: If this email is for a subscription that has just been cancelled through the dunning functionality

is_subscription_dunning_reminder

Description: If this email is for a subscription past due reminder email triggered by the dunning functionality