ST Transaction Set Header

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

Sequence

Element

Name

Type

Requirement

Min

Max

Repeat

01

143

Transaction Set Identifier Code

Identifier (ID)

Mandatory

3

3

1

Code identifying a Transaction Set

The transaction set identifier (ST01) is used by the translation routines of the interchange partners to select the appropriate transaction set definition (e.g., 810 selects the Invoice Transaction Set).

Codes (322)

02

329

Transaction Set Control Number

String (AN)

Mandatory

4

9

1

Identifying control number that must be unique within the transaction set functional group assigned by the originator for a transaction set

03

1705

Implementation Convention Reference

String (AN)

Optional

1

35

1

Reference assigned to identify Implementation Convention

The implementation convention reference (ST03) is used by the translation routines of the interchange partners to select the appropriate implementation convention to match the transaction set definition. When used, this implementation convention reference takes precedence over the implementation reference specified in the GS08.