Hello,
My Odoo version is 13 and I would like to attach a file to the invoice mail, how to do it ? This file is previously uploaded by the user in a separate view.
I already try to override `action_invoice_sent` of `AccountMove` model by setting `default_attachment_ids` to the context but it doesn't work. The only attachment is always the invoice report.
Thanks for your help !
Gaspar.