Account Refund Early Payment Discount

This module changes how Odoo handles early payment discounts on refund documents. In standard Odoo, early payment discount handling is limited to certain journal entry types; this module adds customer credit notes and vendor refunds to that list.

• It works on the account.move model, which is the record behind invoices, credit notes and refunds.
• It overrides the internal method that decides which document types can carry an early payment discount, adding out_refund (customer credit notes) and in_refund (vendor refunds).
• Because of this, the discount terms, due dates and payment behaviour already available on invoices can also be applied to refunds.

There are no new menus, screens, buttons, reports, scheduled jobs or emails in this module. It does not add new fields or configuration options. It only widens the scope of the existing early payment discount feature to refund documents, so accountants can offer or receive the same discount conditions on credit notes and vendor refunds as on regular invoices. The module depends on the standard Accounting app (account) and is marked as Alpha development status.