Use customer defined tax rate instead of automatic sales tax
Has anyone found a solution to use the tax rate defined in the customer's 'Additional info' ? If not, what is that field for? I would love to be able to turn off anything to do with automated sales tax and just use that rate for each customer. Location based sales tax will not work for us. If I attempt to override the `TxnTaxDetail.TxnTaxCodeRef` through the API, it is ignored and set to "Automatic Calculation."
I'm currently seeing the best course of action being using the API to manually grab the rate defined in the customer's additional info, hand calculate the tax line, and push it along to each invoice. This seems a bit silly though because the desktop version did all of this for us.

