Odoo-18.0-20251222/account_invoice_refund_link/readme/USAGE.md

To use this module, you need to:

1. Go to "Invoicing -> customers -> Invoices", create an Invoice and validate it by clicking on the 'Confirm' button.
2. Create a Credit Note by clicking on the 'Add Credit Note' button.
3. In the form view of that Credit Note you can see the new field 'Invoice reference' that is a link to the Original Invoice (the one you created in step 1)
4. Come back to the original Invoice created in step 1 and you will see a new page in the notebook called 'Refunds'. There will be the Credit Note that you created in the previous step.