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I am a developer and have used AN for almost 20 years. I have customers who I have converted to DPM to be PCI compliant. I understand that DPM will not longer be available after July next year and that the sandbox will not support it from this July 1...

We used merchant defined form fields to carry information back to our site after AN processing, rather than using session variables to maintain state. We have just switched from using AIM and notice that with SIM or DPM all those fields come back at ...

We’d like to share just a couple of minor items beyond the code when converting from AIM to DPM that caught us by surprise. With AIM all the payment form settings in the AN admin are ignored as best we know. But in DPM, although the form is never use...

This is an update to our original post at:http://community.developer.authorize.net/t5/Integration-and-Testing/DPM-only-working-intermittently-Using-Form-post-to-return-info/td-p/28380 With DPM, a developer account, and using an SSL link for the relay...

We are developers and organizations use our application to process credit cards. After years running well with AIM we have converted to DPM to facilitate PCI compliance (still use AIM for credits since it does not require any credit card info). In ou...