Authoriz.net Error code 103

We are trying to test the authorize.net transactions with pro forms. All of the transactions return an error 103. Reading the forums make it seem like this could be a number of things.

We have been using authorize.net for another membership system and are trying to shift completely to s2member. The other system did not use MD5 Hash is this required for s2Member? and if so how will affect the other transactions being processed?

Thanks for your inquiry. ~ We appreciate your patience :-)

We are trying to test the authorize.net transactions with pro forms. All of the transactions return an error 103. Reading the forums make it seem like this could be a number of things.

Regarding error #103. Please see this article.
https://support.authorize.net/authkb/index?page=content&id=A852&actp=LIST

We have been using authorize.net for another membership system and are trying to shift completely to s2member. The other system did not use MD5 Hash is this required for s2Member? and if so how will affect the other transactions being processed?

The MD5 Hash is used to verify the integrity of data received from the Authorize.Net Silent Post/IPN system. It is required for s2Member® integration. If you’ve never used this before; generating an MD5 Hash specifically for s2Member® should have no impact on other applications you might use; because it means those other applications are not currently connecting to this service against your account anyway.