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Author's profile photo arghadip kar

How to Debug a FIORI App and the Debug Triggers in SAP Backend?


There is a saying if you can find the perfect place or spot to Debug in SAP you can solve anything and everything. This blog will cover how you can set the Debugger in SAP ABAP and the executing will be from SAP Fiori.



First we login to Fiori and we will choose the App we want to check. We will Use Customer Balance aka FBL5N 🙂


Now put some Company Code and Press F12 and Press Go

Below is the ODATA service which contains the ABAP Code.


Now go to Transaction Code /IWFND/MAINT_SERVICE and search for the ODATA service


Now we double click on the Service and hit SAP Gateway Client

Now hit Service Implementation


Double Click on Data Provider Class

Click on Display Object List

Open the Redefinitions and open this Method. Redefinitions contains your code.

Now put External Breakpoint as shown below


Now go to Fiori and enter some parameter and hit Go


Wala Debugger has stopped.




The above blog you can use for both SAP ECC and SAP S/4HANA


Below is the video version

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      Author's profile photo Joseph Chinnabathini
      Joseph Chinnabathini

      Good one AK.

      Author's profile photo Ranjit Daniel
      Ranjit Daniel

      Thanks so much for this. My customer is on s/4 hana1909 FPS01. I followed your above steps for debugging but have an issue. In CL_PS_WBSELEMENT_OVW_DPC_EXT there seems to be no Redefinitions folder in the Methods folder. Is there anywhere else I can locate that folder or the required method?

      Please advise.



      Author's profile photo Sebastian Sav
      Sebastian Sav



      Thank you for this very good described article.


      Best Regards,

      Sebastian Sav

      Author's profile photo B@lu .
      B@lu .

      Hi arghadip kar,

      very good explanation. thank you.

      could you please explain on how to debug and identity Custom Fiori app technical details(Front end).




      Author's profile photo Nagaraj Narimetla
      Nagaraj Narimetla

      Dear Arghadip Kar,

      Thanks a lot for a very nice step by step way to debug Fiori object and to lead into the backend redefinitions code to set the breakpoint.

      Well done my friend.  Thanks again