Configuration for blocked PO once item has been received
Here's our scenario: our PO can still be edited eventhough it has already its GR and IR. I know it should be a standard config that once item in PO has been received, PO can not be edited (for example, deletion of line item). Please help me in checking this one. Is their a config step in which we could prevent this case?
(Full points for close, if not exact, answer)
There is No such Control in Standard SAP such that it restricts User not to Modify / Delete the Line items Once GR/IR has been made.
Somehow you Can restrict Users Not to Delete PO Line Items Using Enhancement MM06E005 with FM EXIT_SAPMM06E_008 Import Data from Customer Subscreen for Purchasing Document
But, i am not sure about this. Please confirm with abaper also.
One More thing is better to Configure Release Strategy and set Release Indicator in such a Way that it should not allow to Change Once PO Released.
You can also go for Version Management for Purchase Orders.