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Definition
A two-digit code to distinguish between different types of official documents as prescribed by the Taiwanese authorities, for example invoices, debit memos, or credit memos. The Government Uniform Invoice (GUI) format corresponds to the SAP document class.
Use
In order to create your
value-added tax (VAT) media files, you have to maintain a GUI format for every type of document that records a GUI-related transaction. You maintain your GUI formats in Customizing for Cross-Application Components:General Application Functions ® Cross Application Document Numbering ® Taiwan ® Maintain Document Classes

GUI formats are entered in the system as document classes.
Structure
GUI formats depend on various factors:
and are prescribed by the authorities in Taiwan as follows:
|
GUI format |
Description |
|
21 |
Vendor GUIs issued in triplicate from the system |
|
22 |
Vendor non-GUI receipts (including GUIs issued in duplicate from a cash register) |
|
23 |
Vendor GUI debit memos issued in triplicate |
|
24 |
Vendor GUI debit memos issued in duplicate (including other non-GUI receipts) |
|
25 |
Vendor GUIs issued in triplicate from a cash register |
|
26 |
Vendor summary GUIs issued in triplicate from the system |
|
27 |
Vendor non-GUI summary receipts (including GUIs issued in duplicate from a cash register) |
|
28 |
Receipts issued by the customs authorities for VAT paid on imported goods |
|
31 |
Customer GUIs issued in triplicate from the system |
|
32 |
Customer GUIs issued in duplicate from a cash register |
|
33 |
Customer GUI credit memos issued in triplicate |
|
34 |
Customer GUI credit memos issued in duplicate |
|
35 |
Customer GUIs issued in triplicate from a cash register |
|
36 |
Customer non-GUI receipts |
|
37 |
Customer non-GUI receipts subject to special taxes |
|
38 |
Customer non-GUI credit memos subject to special taxes |
Integration
GUI formats correspond to specific standard document types. This means that you must map the GUI formats to their respective document types. You do this in Customizing for Cross-Application Components:
General Application Functions ® Cross Application Document Numbering ® Taiwan ® Assign Document Class to Document Type

Map GUI format 21 to document type KR
Map GUI format 31 to document type DR
When you assign a GUI format to a document type, select Self-iss. for all customer invoices so that the system is able to call the correct number range for the
business place concerned and so assign a valid GUI number.
Alongside the GUI formats and their related document types, you have to maintain other document types for accounting purposes. It is important that you differentiate between GUI and non-GUI related functions and so, to simplify document posting, you can default GUI-related document types to their corresponding transactions. To do this, in Customizing for Financial Accounting choose:
General Ledger Accounting ® Business Transactions ® G/L Account Posting - Enjoy ® Define Document Types for Enjoy Transaction
Financial Accounting Global Settings -> Document -> Default Values for Document Processing -> Default Values
