UNHMESSAGE HEADER

To head, identify and specify a message.
0062
MESSAGE REFERENCE NUMBER
Mandatory an 0..14
Unique message reference assigned by the sender.
S009
MESSAGE IDENTIFIER
Mandatory Min: 1 Max: 1
Identification of the type, version etc. of the message being interchanged.
0065
Message type identifier
Mandatory an 0..6
Code identifying a type of message and assigned by its controlling agency.
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0052
Message type version number
Mandatory an 0..3
Version number of a message type.
0054
Message type release number
Mandatory an 0..3
Release number within the current message type version number (0052).
0051
Controlling agency
Mandatory an 0..2
Code identifying the agency controlling the specification, maintenance and publication of the message type.
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0057
Association assigned code
Conditional an 0..6
Code, assigned by the association responsible for the design and maintenance of the message type concerned, which further identifies the message.
0068
COMMON ACCESS REFERENCE
Conditional an 0..35
Reference serving as a key to relate all subsequent transfers of data to the same business case or file.
S010
STATUS OF THE TRANSFER
Conditional Min: 0 Max: 1
Statement that the message is one in a sequence of transfers relating to the same topic.
0070
Sequence message transfer number
Mandatory n 0..2
Number assigned by the sender indicating that the message is an addition or change of a previously sent message relating to the same topic.
0073
First/last sequence message transfer indication
Conditional n 1
Indication used for the first and last message in a sequence of the same type of message relating to the same topic.
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