Hello, I have Odoo 8. When I do a sale or a purchase, I have to specify order_lines and the tax associated with each order_line. But in some products, I need to specify a fixed tax value. For example:
-Product A, price without taxes: $100. Tax T1 10%: $10. Fixed tax T2: $1,93. Total with taxes: $111,93.
How can I specify the tax T2? It is a differente value for each line.