We currently use the DPM API for our site. We've been live for 2 weeks and transactions have been successfully coming in. When we launched, I had unchecked all AVS and CVV settings.
Wanting to have some sort of fraud protection, I have recently turned AVS on. Here's where the problem begins...
After turning on the AVS settings and trying to place an order I'm getting an error 13 stating that the merchant login ID or password is invalid or the account is inactive. This is strange seeing that the site does work and has processed transactions. When I turn of the settings, the site works again, no error 13. Changing AVS settings shouldn't have any effect on the the merchant login ID or password.
Any ideas what could be causing this?