Debug BRF Function

If your BRF rule doesn’t work as expected you might need to debug it. BRF+ generates an ABAP class for each BRF function.
To debug it, you need to find out the generated class name first.
There are 2 ways to do it:

1. Change User Mode to Expert
   • Click on Personalize:
     
     
   • Select User Mode – Expert and click Save:
     
   • Go to Code Generation tab to find the class name:
     
     
2. Alternatively, run report FDT_GENERATION_TOOL (SE38)
   • Provide Function ID and Execute (F8):
     
   • Class name is provided in the output table in column Object Name:
     
     

Open the class in SE24 / ADT and put an External Breakpoint (for your user) in method PROCESS_PURE

Execute your code calling the BRF Function.
That’s it!
You can now start debugging your BRF+ Function.