Contract number in PO after GR

[former_member996354]

Hi

I have a situation and would appreciate if someone can provide an insight on how to solve.

1-I have a PO with 2 items. Item 10 has been received. Item 20 has not been received.

2-Now I discovered that there is a contract for that vendor/items but not in SAP.

3-I created therefore the contract in SAP.

4-In the PO, I can input the new contract# in the item 20 that does not have GR but for the item 10 I can't do it because, I assume, it has already a GR (even after canceling the GR in order to re-do it later, the PO does not allow me to input the contract number)

Thanks

Dany