Shopp shouldn’t pass $0 transactions to the gateway. It has a special built-in “Free Order” processor to handle the payment process for a completely free order so it bypasses any installed gateway.
I don’t recognize that error coming from Shopp at all. Normally it would say something like:
Authorize.net: Your credit card was declined.
Did you see an “Authorize.net:” prefix in front of the error?
Some of our customers are getting the same error. I spoke with the support at Authorize.Net and they said the issue is the website is trying to submit $0 authorizations, and it needs to be $0.01 or higher.
Is there somewhere I can change this setting? The plugin is unmodified, but I don’t mind editing PHP if directed to for a short term solution.
If it helps, we are running WordPress 3.9.1, Shop 1.3.3 and Authorize.Net 1.2. I wish I could show the website, but our client would prefer us not to.
Any help is appreciated. Thank you.
Shopp 1.3.4 was released last week and should help address your issues. Try updating and see if that helps. If not though, please let me know so we can try to recreate the issue and get it reported as a bug so it can be addressed (if it really is a bug).
