When e.invoice is enable on customre masterdata, warning message “Field Contact name must be filled in” pops up each time an invoice is posted.

Contact is not mandatory on e.invoice so it should not show.

Even if not blocking, it is one more message showing for nothing.

End user received lot of message and at the end they do not see the important one.

That will be good to be an option on global address book to request or not a contact not when an invoice is posted.