Please guide me to address the following issue:
As per Standard SAP, I can do GI (MB1A - 261 Mvt) for any quantity irrespective of reservation quantity (calculated as per BOM ratio).
If the FG to HALB ratio is 1:1 and the production order is created for 10 units. The HALB required would be 10 units only (as per BOM). But system allows to issue more than 10 units also.
How to restrict this? The GI should be allowed for less than or equal to the reservation quantity only (system should not allow more quantity to be issued.
One way I can do this is by making a transaction variant and making qty field display only. But in this case I would not be able to change it to lesser qty, which is required.
Please suggest some method to check this at the time of GI or the user exit available for this.