Enter a selection

What causes this issue?

You have not made an entry in the "Selection" area that enables the
system to allocate the invoice or credit memo.

How to fix this error?

Make an entry in one of the fields <LS>Purchase order</>, <LS>Delivery
note</>, <LS>GR document</> or <LS>Supplier</>.

Error message extract from SAP system. Copyright SAP SE.