Hello,
Steps for IPC debugging:
1 - User parameter PRC_RFC = X
2 - Create a sales transaction with pricing, and the ABAP debugger should start.
3 - There should be a IPC FM nearby, so press F5 a few times until you enter one.
4 - A pop-up windows appears to say IPC is in debug mode. DO NOT PRESS OK.
5 - In Eclipe, set the debug port to the one in the pop-up window and start debug. Be quick about it, since CRM doesn't seem to like waiting....
6 - No error should appear.
7 - Back to ABAP, press F8 and Eclipse will open in your custom exit.
Here you can use "VMCJDB" t-code instead of eclipse.
Br,
Navn