| Return to EDIFACT 30000 Segments page. 
 
| UCM -  | 
Message/package responseUN/EDIFACT Syntax Version 3 Segment List
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|  | Function: | To identify a message in the subject interchange, and to indicate that message's acknowledgement or rejection (action taken), and to identify any error related to the UNH and UNT segments. |  
 |  | This segment also occurs in the following versions of this standard: 30000, 40000, 40100
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| Pos | Segment | M/C | Repeat | Repr. | Notes |  | 010 |  | 0062 | Message reference number | M | 1 | an..14 |  |  | 020 |  | S009 | MESSAGE IDENTIFIER | M | 1 |  |  |  |  |  | 0065 | Message type | M |  | an..6 |  |  |  |  | 0052 | Message version number | M |  | an..3 |  |  |  |  | 0054 | Message release number | M |  | an..3 |  |  |  |  | 0051 | Controlling agency | M |  | an..2 |  |  |  |  | 0057 | Association assigned code | C |  | an..6 |  |  | 030 |  | 0083 | Action, coded | M | 1 | an..3 |  |  | 040 |  | 0085 | Syntax error, coded | C | 1 | an..3 |  |  | 050 |  | 0013 | Service segment tag, coded | C | 1 | a3 |  |  | 060 |  | S011 | DATA ELEMENT IDENTIFICATION | C | 1 |  |  |  |  |  | 0098 | Erroneous data element position in segment | M |  | n..3 |  |  |  |  | 0104 | Erroneous component data element position | C |  | n..3 |  | 
 
 
| Pos | Position | 
|---|
 | M/C | Mandatory or Conditional | 
|---|
 | Repr. | Representation (Data or Content Type) | 
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 | Segment UCM is used in the following messages: | 
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| CONTRL | 
 
 
			
				| Change indicators |  
				| plus sign |   | An addition. |  
				| asterisk |   | Addition/substraction/change to a code entry for a particular data element. |  
				| hash or pound sign |   | Changes to names. |  
				| vertical bar |   | Changes to text for descriptions, notes and functions. |  
				| minus sign |   | A deletion. |  
				| letter X |   | Marked for deletion. |  Return to EDIFACT 30000 Segments page.
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