Setting Up System Users
If a system user cannot enter GUI transactions or cannot access the correct forms, verify that:
- The Localization Country Code field in the User Profile Revisions program (P0092) is TW (Taiwan). 
- The user is set up as an authorized user for the declaration site and transaction type in the GUI/VAT User/Declaration Site Mapping program (P75T010). - The authorization code for the user, declaration site, and segment numbers must be the same.