external Debugger not opening for Decision Step from Portal UWL

Hi Experts,

We have copied standard DECISION BOR into a custom one.

Inside PROCESS method, after FM SWU_PROCESS_MANUEL_DECISION, we are executing our custom logic.

this is working fine in back-end system(ECC). But when it is called from Portal, this is not working.

To check the code in run time, we are putting external break point for the user. This is the same user who is logged in to Portal and will execute the decision step.

Surprisingly debugger is not opening in ECC.

We have tried putting endless loop inside the method. Debugger dosen't stop in SM50.

Also tried using OK code ED_SET_EXT_BREAK as per below thread.

External Debugger in BOR

But no hope.

When we are checking Workflow log in ECC, it is executing as per the desired sequence. But debugger is not stopping after user decision step.

Our aim is to check, why our custom code is not triggering when user is executing from portal where as it is working fine if everything happens in ECC.

There is no authorization issue with the user for external debugging.

Thanks in Advance,

Manoj