AK2 Transaction Set Response Header

To start acknowledgment of a single transaction set

Position: AK2-01 · Element: 143 · Name: Transaction Set Identifier Code · Type: Identifier (ID) · Requirement: Mandatory · Min: 3 · Max: 3 · Repeat: 1

Code uniquely identifying a Transaction Set

AK201 is the transaction set ID found in the ST segment (ST01) in the transaction set being acknowledged.

Position: AK2-02 · Element: 329 · Name: Transaction Set Control Number · Type: String (AN) · Requirement: Mandatory · Min: 4 · Max: 9 · Repeat: 1

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

AK202 is the transaction set control number found in the ST segment in the transaction set being acknowledged.