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  UN/EDIFACT  D.03A (Batch) Syntax version 3 Issue date 2003-06-23  
  Message type specification APERAK
 
 
APERAK 4 Application error and acknowledgement message  
  Date:
2003-06-10

Source:
TBG3 Transport

0. INTRODUCTION
This specification provides the definition of the Application error and acknowledgement message (APERAK) to be used in Electronic Data Interchange (EDI) between trading partners involved in administration, commerce and transport.

1. SCOPE

1.1 Functional definition
The function of this message is:
a)  to inform a message issuer that his message has been received by the addressee's application and has been rejected due to errors encountered during its processing in the application.
b)  to acknowledge to a message issuer the receipt of his message by the addressee's application.

1.2 Field of application
The Application error and acknowledgement message may be used for both national and international applications. It is based on universal practice related to administration, commerce and transport, and is not dependent on the type of business or industry.

1.3 Principles
A message being first controlled at system level (CONTRL) to detect syntax errors and to acknowledge its receipt is then transmitted to the application process to be processed.

If an error is detected at the application level, which prevents its complete processing, an APERAK message is sent to the original message issuer giving details of the error(s) encountered.
If no error has been detected and when an acknowledgement is necessary (when no dedicated answer to the original message exists) an APERAK message is sent precising the reasons of acknowledgement.
In case of application error, the APERAK message will need manual processing e.g. when the underlying reason is a programming error.

In case of acknowledgement the APERAK message may be automatically or manually processed at recipient's discretion.

2. REFERENCES
See UNTDID, Part 4, Chapter 2.3 UN/ECE UNSM - General Introduction, Section 1.

3. TERMS AND DEFINITIONS

3.1 Standard terms and definitions
See UNTDID, Part 4, Chapter 2.3 UN/ECE UNSM - General Introduction, Section 2.

4. MESSAGE DEFINITION

4.1 Data segment clarification
This section should be read in conjunction with the segment table which indicates mandatory, conditional and repeating requirements.
 
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