Having set up the vendors, product categories, products, etc. as per the help text, I have tried to process a purchase. The following error is displayed:
Fields in your VSP Form Submission POST
The following fields were included in the FORM sent to the VSP Form submission page.
Vendor: [not present]
Crypt: Present - See decoded section below
You did not provided a VSP Vendor Name in the Vendor field of the transaction registration POST.
I have re-checked all information and can not work out where the VSP Vendor Name is stored. Any ideas?