In sale order and inovice I need to calculate taxes before any discounts..and need to add some product to invoice as promotion ..with zero amount but taxes included.
Ex:
Amount = 100 £
Discount 1 : 10%
Amount : 90
Tax : 10% before discount = 10
Amount with tax = 100
Pounce = 10 product = zero amount with 10% tax in base amount = 1£.
Total = 101 £
Im using odoo 10 CE..Any help?