Out-of-the-box: External (item number) field is available PO details (line level) but not in Vendor invoice details (line level).

With the field External, the finance team is more efficient in making a comparison with the invoices received from suppliers. On the supplier's invoice, the external item number is often mentioned hence updating vendor invoice lines (when needed) is more efficient if the info were to be available.

IDEA to add the External (item number) field to the Vendor invoice / lines overview & include the External (item number) field to the "Open in Excel" option from the Vendor invoice form.