When trying to post a purchase invoice, I get an error attached "VAT calculation type must be equal to sales tax in general journal line: journal template name=, journal batch name=, line no=0. Current value is normal tax. I changed the setting in the tax posting setup for the field VAT calculation type from normal tax to sales tax. And the tax category field I also added the letter E. If I delete the existing purchase invoice or purchase order and then recreate new, I am able to post. But with an old document, even after changing the tax posting setup, I still get that posting error. Any way to solve this without having to delete all the old purchase documents and be able to post? Is there a toggle somewhere on the purchase document or elsewhere that I can adjust?