UNZ Interchange trailer

To end and check the completeness of an interchange.

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Position
Element
Name
Type
Requirement
Min
Max
Repeat
010
Interchange control count
Numeric (N)
Mandatory
1
6
1
The number of messages and packages in an interchange or, if used, the number of groups in an interchange.
020
Interchange control reference
String (AN)
Mandatory
1
14
1
Unique reference assigned by the sender to an interchange.
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