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UCD -

Data element error indication
UN/EDIFACT Syntax Version 3 Segment List

Function:To identify an erroneous simple, composite or component data element, and to identify the nature of the error.
This segment also occurs in the following versions of this standard:
30000, 40000, 40100

Pos Segment M/C Repeat Repr. Notes
010 0085 Syntax error, coded M 1 an..3
020 S011 DATA ELEMENT IDENTIFICATION M 1
0098 Erroneous data element position in segment M n..3
0104 Erroneous component data element position C n..3

PosPosition
M/CMandatory or Conditional
Repr.Representation (Data or Content Type)

Segment UCD is used in the following messages:
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.

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