Transaction Set Header

ST Transaction Set Header

Pos: 2

Max: 1

Heading - Mandatory

Loop: N/A

Elements: 2

User Option (Usage): Must use

To indicate the start of a transaction set and to assign a control number

Ref	Id	Element Name	Req	Type	Min/Max	Usage
ST01	143	Transaction Set Identifier Code Description: Code uniquely identifying a Transaction Set. All valid standard codes are used.	M	ID	3/3	Must use
ST02	329	Transaction Set Identifier Code Description: Identifying control number assigned by the originator for a Transaction Set. Also see: Data Interchange Control Number (28.)	M	AN	4/9	Must use

The transaction set identifier (ST01) is intended for use by the translation routines of the interchange partners to select the appropriate transaction set definition (e.g., 810 selects the invoice transaction set).

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