How to control Component issue based on subcontract purchase order

Hi Team,

For our client implementation, we have requirement as below for subcontract PO,

1. Component has to be issued based on requirement qty from PO

2. we are not using delivery for GI, but through MB1B adapting details form PO

Our issue is Component to be issued is 10 qtys as per details from PO, so through MB1B we have already issued 10 qtys by adapting details from PO, but we need to have a check point to block goods issue when user tries to issue additional 10 qtys for the same PO.

we will be using subsequent delivery

Please let us the know the pointers on this requirement

Thanks

Rajesh Rajagopal