In order to keep a proper numerical sequence of invoices issued in the Company ( between those that are printed in excel and in SAP), we need to set manually a number in the SAP invoice document that we will use to print the form, and that is independent from the one assigned internally.
What would be the best field to set this number?
Reference number (in Header - Accounting data) would be a good choice, but seems like it is managed through copy control and can only be assigned automatically to: Customer PO #, Sales order #, Delivery #, External delivery # and current invoice #. Would it be possible to assigned it manually?
thanks for your always valuable ideas,