Changes in PR allowed even if PO exists

[Former Member]

Dear Gurus

In CJ20N , for a material/service, changes in quantity,price in the PR are allowed even if PO exists for the same PR. Can anyone suggest some solution to this problem.

Is there any user exit or can we write some validation to stop the same

Thanks in advance

Regards

Abhijit

[Former Member]

Check if the t-code OPSG can help you to control the modification for the components when the PO exist.

Best Regards...