Account Invoice Delete Attachment on Cancel

When an invoice is validated, on the first generation of the invoice report, a copy of the report is stored as attachment on the invoice. After that, every time you a user asks for the Invoice report, it will be taken from the attachment.

With this module, when an invoice is cancelled, the attachment is deleted.

Please contact Alexis de Lattre from Akretion <alexis.delattre@akretion.com> for any help or question about this module.