Prerequisites
Before you complete the tasks in this section:
- Verify that the Localization Country Code in your User Display Preferences is set to TW (Taiwan). 
- Specify Y in the Link AP To GUI field on the GUI/VAT Declaration Site form for the declaration site for which you are entering transactions. 
- Set up and activate a user/declaration site mapping for the user who will enter vouchers. 
- Set up corresponding versions of the voucher entry program (P0411 or P0411SV) and P75T003 and P75T004. - See Setting Up Processing Options and Versions to Work with GUI/VAT Transactions. 
- Specify the standard program and version to use for purchase transactions in the GUI/VAT Document Type Format Code Setup program (P75T011). - See Associating Format Codes and Programs to Document Types. 
If you will be adding VAT payment documents for prepayment through customs, complete these additional steps:
- Set up a tax rate area for Taiwan import tax. 
- Add the code that you set up for the tax rate area for Taiwan import tax to the GUI/VAT Cat. Code 7 - Supplier (75T/C7) UDC table. 
- Set up GUI/VAT supplier constants by using the Custom Authority's address book number, and specify the tax rate area for Taiwan import tax in the Cat. Cd 7 - Supplier field on the GUI/VAT Supplier Constants Revisions form.