I'm trying to update a VendorBills "header" Tax-Amount (

.setTaxTotal()

/

.setTax2Total()

). My call goes through fine, but when I check the VB in NetSuite, the Tax Amount has not changed... I believe this is likely due to NS' auto-tax-code calculation... Is there a way to disable this so that I can update tax values through SuiteTalk? (or am I just doing something inherently wrong)