Website Sale FiscalCode

This module extends the standard Odoo e-commerce checkout by adding a Fiscal Code input to the billing address form. The field appears only in the billing section of the address step, right after the phone field, and is labelled "Fiscal Code".

When a customer submits the checkout form, the entered fiscal code is saved on the customer's contact record (res.partner). The module also validates the fiscal code during checkout: if the value is not valid, the field is highlighted as an error and an error message is shown, so the customer cannot continue with an invalid code.

The validation takes into account whether the customer is a company or an individual, using the company name when available. This module depends on the Italian fiscal code localization and the website sale module, and it installs automatically when both are present. It does not add any new menus or reports; it only changes the online checkout form and the way customer data is saved.