Dear Ömür,
Firstly thanks for reply, but its months old requirement now and we have already figured out the solution and have already adopted it, keeping the standard process sanctity in place.
Secondly, I need to highlight that business requirements need to be reviewed with an open mind and must be evaluated from business process and internal controls perspectives. And then afterwards must be compared with SAP standard processes. The adopted process must ensure that the business process targets are achieved, while keeping SAP (or the ERP) process/ technical requirements taken care of; with zero or minimal ABAP, as required.
We did it without any ABAP.
So, this is not a mistake :-)
Thank you again for taking time out and suggesting your opinion. I really appreciate.
Best,
Furqan.