Invoice Fiscal Position Update

This module adds an automatic behaviour to customer invoices in Odoo's Accounting app. Normally, changing the fiscal position on an invoice does not recalculate the taxes and accounts already set on the invoice lines. With this module installed, when you pick a different fiscal position on an invoice, Odoo recalculates the taxes and the accounts for every invoice line that is linked to a product.

• Lines that have a product: their taxes and accounts are refreshed according to the new fiscal position.
• Lines without a product (free-text lines): they are not changed, and a warning message is shown to you so you know those lines still need manual attention.

The module only depends on the standard Accounting app (account) and does not add any new menu, screen, report or model of its own. It works inside the existing invoice form, so there is nothing new to learn: you simply change the fiscal position field as usual and the lines update themselves.

Note: the module is marked as obsolete and no longer maintained by its authors, so it may not be suitable for new installations. The source code provided is limited to the manifest, so the exact warning text and the precise recalculation rules cannot be confirmed from the code shown here.