GR-based invoice verification not defined for PO item

What causes this issue?

The GR document can only be displayed for those PO items for which
GR-based invoice verification has been defined in the purchase order.
GR-based invoice verification has not been defined for your item.

How to fix this error?

There may have been a number of goods receipts for a PO item without
GR-based invoice verification. You can list all these goods receipts via
the function <LS>PO history</>. You can then display individual GR
documents from this list.

Error message extract from SAP system. Copyright SAP SE.