Account Fiscal Position - Product

This module extends fiscal positions in Accounting so that a tax mapping can be limited to certain products or product categories.

On the fiscal position form, inside the tax mapping lines, two new fields appear next to the destination tax: Products and Product Categories. You can tag one or several products, or whole product categories, on each mapping line.

• If at least one mapping line has a product or category, the fiscal position becomes a "product fiscal position".
• When such a fiscal position is applied to a document line, the tax is replaced only if the line's product (or its category) is listed on a matching mapping line.
• If no mapping line matches the product, the original taxes are kept unchanged.
• If no mapping line has any product or category, the fiscal position behaves as usual and maps taxes for all products.

The module touches the fiscal position and its tax mapping records (account.fiscal.position and account.fiscal.position.tax) and adds the new fields to the standard fiscal position form view. No new menus or reports are added.