Account Invoice Auto Send By Email

This module adds an automatic daily routine that sends customer invoices and credit notes by email. It is meant for companies that want posted invoices to reach customers without someone clicking "Send" manually.

Every day at 23:00 a scheduled job runs for each company. It looks for customer invoices and refunds that are posted, not yet sent, still unpaid, and whose customer (commercial entity) has "email" set as the invoice sending method. Each matching invoice is queued as a background job on a dedicated channel called "invoice_auto_send", so the sending does not block the system.

When a queued job runs, it first checks that the invoice has not already been sent and that the customer still wants email delivery; otherwise it stops. It then opens the standard invoice sending wizard with the email option pre-ticked and confirms it, which produces the usual email with the invoice attached.

There are no new menus or screens: everything happens in the background on the standard account.move invoices. Users only notice that eligible invoices get marked as sent and the customer receives the email. The daily schedule can be adjusted in the scheduled actions settings.