BAPI to update BZMNG(General reference quantity) in QM01

Hi All,

I'm trying to use function module IQS4_MODIFY_NOTIFICATION in a program to update the general reference quantity field in a Quality notification but it doesn't change the data.

The way I have tried :

I have passed value to RIQS5-BZMNG(One of import param of this FM). I have also passed other relevant values which are required in this case. I have also passed QMGRP,QMCOD values to this structure.

then called BAPI_TRANSACTION_COMMIT.

What I see is that Reference qty gets updated but values QMGRP,QMCOD are getting removed(cleared out) when I open the notification and see from QM02.

Any help in this regard is greatly appreciated.

Thanks

Himayatullah