Invoice document already released for Inv. Verification in the background

What causes this issue?

The invoice document was released for batch invoice verification as a
result of a change in the invoice verification type.
You can only edit the items or aggregation data if the invoice
verification type indicator is set to 'Online invoice verification' or
'No invoice verification for time being'.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If the invoice has not yet been processed in the background, you can
change the invoice verification type back to 'Online invoice
verification' or 'No invoice verification for time being'. Only then
can you edit the invoice again.

Error message extract from SAP system. Copyright SAP SE.