3642802 - The system permits changes to the purchase order net price after the goods receipt has been posted

The system allows the net price of a purchase order to be changed after goods receipt posting, even when the "Delivery Completed" indicator is set.

SAP S/4HANA Cloud Public Edition

1. Create a Purchase Order in the system.
2. Post the Goods Receipt and ensure that the "Delivery Completed" indicator is selected during the posting process.
3. Open the Purchase Order and attempt to modify a net price for the line item for which the "Delivery Completed" indicator has been set.
4. Save the Purchase Order and observe the system behavior.

1. This is standard behavior of the system. The net price in a purchase order can still be adjusted after a goods receipt or invoice receipt has been posted, allowing inclusion of any material price changes that occurred in the meantime, refer to KBA 457511 Question no 3 for further details.
2. As a workaround BADI BD_MMPUR_FINAL_CHECK_PO can be used to add check logic and trigger a custom message to prevent changes to the net price after the goods receipt. 

3622862 - Error Message Delivery of item xx of document xx already completed. Message no. 06744

457511 - FAQ: Purchase order change and goods receipt in purchasing

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