account_invoice_refund_link

Purpose

Provide visibility on refund credit notes by linking them to their originating invoices and invoice lines within Odoo.

Features

account.move: Adds a Refunds tab on customer and vendor invoices listing the linked refund moves with statuses.
account.move: Displays an Invoice reference field on refund moves that links back to the originating invoice.
account.move.line: Introduces origin and refund line relationships to trace which invoice lines spawned each refund line.
account.move.line: Ensures copied refund lines inherit the origin line reference when reverse moves create them.
technical: Automatically backfills refund line links on installation by matching products or descriptions with their original invoice lines.