Invoices not verified automatically when online check selected

What causes this issue?

You changed the Invoice Verification type to online verification.
INCLUDE MM_IV_MELDUNGEN OBJECT DOKU ID TX

System Response

Although you changed the invoice verification type, the system does not
automatically verify the invoice.

How to fix this error?

You can edit the items or go to one of the aggregation levels
available.

Error message extract from SAP system. Copyright SAP SE.