ST Transaction Set Header
To indicate the start of a transaction set and to assign a control number
Position
Element
Name
Type
Requirement
Min
Max
Repeat
Code uniquely identifying a Transaction Set.
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).
Identifying control number assigned by the originator for a transaction set.