Hi,
I have a customer who is trying to use our site to purchase. When she submits her order, she receives this error:
Required Payment Processing Parameter Missing. Client App: Fatal Error.
I've checked with Authorize.net and the payment is never being sent over to them at all, so it seems that it's completely on the Shopsite side. I'm running version 10 of ShopSite.
How does this get fixed?
Thanks,
Miriam