I have done development for export sales orders, I have created new fields taxItemGroup, Tax Group, net Amount, these fields are different than the SO fields.
I need to calculate Tax based on my new fields. Let me know any classes we can use the calculate the Tax.
have a quick look at the classes starting Delivery***…
These classes are used to calculate taxes for brazil taxes and they have two separate tax fields(same as yours) in the salesline or I think they have extension tables.
You can also check on the salestable form to know how it is called
I have checked those classes, The calculation for Brazil TaxGroup and ItemTaxGroup but they have used Line amount, qty and Tables are same which has been used in normal sales tax calculation.
I need to calculate Tax for new customized Tables and Fields.