I have created a US Customer that requires HST for Ontario, I have created the new tax account in all sections, but when I go to change the tax class from GSTUSA (5%) to GSTHONUSA (13%). It gives an error warning that it cannot change the tax class to GSTHONUSA, is there a reason for this. “Tax information for item MISC is invalid. No tax class could be found for tax authority GSTHONUSA. The current item tax class will not be changed.”