FoxyCart can pass along an optional `orderRef` number, supplied by the customer or an integration on the checkout page. This value will show up in the Handepay backend. To take advantage of this, pass in a name=“gateway_order_reference” value=“foo” value in the checkout form (replacing foo with your desired value). One way to do this is through the Custom Checkout Fields option in the templates configuration settings of the Foxy admin.
Handepay has test merchant IDs and card numbers that you can use to test ordering. Contact their support for additional resources.
These belong to Cardstream but they work with Handepay as well https://support.cardstream.com/hc/en-gb/articles/360011889898-Test-Cards
Details on different response and error codes can be reviewed here. While these error codes are for Cardstream, they should also apply for Handepay.
If you have any questions for Handepay, they can be contacted at https://www.handepay.co.uk/help-and-support/welcome.
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