When a user is logged in and tax is applied to an order the coupon works fine, but when the user is not logged in and adds a coupon then logs in the discount is not applied to the tax. Do you have a fix for this? We are going live in 2 days and would like some help.
Discount on tax not applying to user that logs in after the order is added to cart
So the coupon function is called before the user logs in and not again. I think the fix would be to make sure it is called again after log in. Go to awocoupon->installation check and make sure you have the shipping installed. This will force the coupon logic to be called again after a shipper is selected.