Setting up Thailand Localization

To set up the Thailand Localization:

Set up a tax code starting with WH on the Tax Codes form. This tax code should be rate-based and negative in value. This tax code is used to calculate the sales tax for a particular vendor payment for which tax needs to be withheld.
Select the Active for Purchasing field on the Tax Systems form. This is necessary if you use the Petty Cash Payments form.
Set up vendors on the Vendors form.