Dear Eshwar,
As per My understanding the screen shot shown of RRP3 version tab the entries in the field of version is different batches against the specified product.
Please find is there a relevant I'model for Stocks active.
In Mat1 in procurement tab you can also see the stock details updated, By which we can learn whether the stocks are actually updated from an OLTP to the APO system.
Hope this clue will help you to fix the problem.
Best Regards
Arvind Pabba