I had some issues a few years back with tax calculations when coupons were used and you helped me get through them. Recently I had to reinstall AWO and whatever change we manually made seems to have been lost though you stated that the change we made would be put in the next version update.
See sample below to get an idea of the problem
AWO - Configuration - Calculate the discount before tax (Coupons) OFF
The discount is wrong, the tax is correct, the total is wrong
AWO - Configuration - Calculate the discount before tax (Coupons) ON
Exactly the same issue
AWO - Configuration - Calculate the discount before tax (Coupons) ON, use injection mode ON
Discount is correct, the tax is wrong, the total is wrong
Look forward to your solution
Thanks
Rick