Point of Sale now supports Viettel SInvoice e-invoicing for businesses operating in Vietnam. This helps retailers issue compliant electronic invoices directly from PoS workflows and improves invoice file handling and price rounding accuracy.

Add Viettel SInvoice integration with the Point of Sale module to support PoS e-invoicing for the Vietnamese market.

task-4844619

Forward-Port-Of: odoo/odoo#245672