Send invoice to Holded as a draft

Leaves the invoice as a draft in Holded, regardless of its status in Filmo, for the accountant to approve there: uses the link, adopts the document carrying its marker, or creates it with the contact and taxes from the connection, using the billing line for its series. A validated document is sent with its checked total and Filmo number, which Holded retains on approval; a draft is numbered by Holded on approval, with the billing line aligned with the Filmo series, and Filmo adopts that number through the “Invoice approved in Holded” notification. A document already issued in Holded is left unchanged.