Hello Jogeswara,
I had tried BAPI_QUALNOT_DEL_DATA in the past, and tried it again after your reply. I am not having any luck getting the task of the notification to delete.
When I test this BAPI from SE37, I follow it up right away with BAPI_QUALNOT_SAVE and BAPI_TRANSACTION_COMMIT. I am not seeing any records being written to the return table either.
Thanks - Mike