I have raised a PO for a supplier and am now creating an invoice matched to this PO. User wants to apply 14% tax rate instead of the usual default of 17.5%. For this purpose I have created a new tax code and rate for 14% so the user can manually change the tax code on the line and press 'calculate tax' button in Invoice workbench.
But, for some reason when he changes tax code and does calculate tax it still calculates at 17.5 % instead of 14% !
It works ok when I do not match to my PO. But if I check on po shipment, tax name column it is blank.