authorize.net dpm throwing error 302

[wendilogic]

i have a system setup that has been running fine for a couple of years.  today, one particular customer was attempting to make a payment and continued to get the error below.  other customers have been able to use the system without error.  any insight into why this error is being thrown?  i am not using x_reversal in my post at all. 

Response Reason Code: 302

Response Reason Text: The reversal flag is invalid.

Other Suggestions: Invalid x_reversal value.

[RichardH]

Hello @wendilogic 

Could you help by providing your full API request with sensitive data redacted?

Richard

[RaynorC1emen7]

http://community.developer.authorize.net/t5/Integration-and-Testing/How-to-do-Authorization-Reversal...

Sound like a setup issue with the the customer credit card issuer.

[wendilogic]

I was unable to get additional details as the user ended up submitting a check payment, and it was not reproducable outside of this particular user.  I appreciate your attention and input.