This function is not allowed in Invoice Verification in the background

What causes this issue?

You want to go to the item screen and have chosen an Invoice
Verification type other than online verification.

System Response

You can only go to the item screen if you have selected <LS>Online
Invoice Verification</>.

How to fix this error?

If you want to go to the item screen, choose Online Invoice
Verification as the IV type.

Error message extract from SAP system. Copyright SAP SE.