It's a cliche about how to debug outbound Idoc triggered by one output type. There're dozens of good articles that already talked about this, Including:
Just recap this, have a try the efficiency approach first before going through all various approaches.
1.Get the process code from WE20 by message Type;
2.Get the Function module by Process code;
3.Set the breakpoint at FM get from the above step and run the program RSNAST0D.
- WE19;
- Change the timing setting for output type to '1' along with the program RSNAST00;
- Active update debugging;
- Maybe the most direct way is using the program RSNAST0D(Generic output issue).
Just recap this, have a try the efficiency approach first before going through all various approaches.
1.Get the process code from WE20 by message Type;

2.Get the Function module by Process code;

3.Set the breakpoint at FM get from the above step and run the program RSNAST0D.
