You cannot process an invoice with status &

What causes this issue?

You have attempted to call up item processing on the batch overview
screen. However, this is not possible, as the invoice does not have a
status that allows this.
Item processing can only be called up for an invoice that has the
status "verified as incorrect".

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

System Response

You cannot call up item processing.

How to fix this error?

Check the status of the invoice.
If the invoice has the status "not verifed", you can only call up item
processing after the invoice has been verified.
If the invoice has the status "verified as correct" or "completed", you
cannot call up item processing.

Error message extract from SAP system. Copyright SAP SE.