ASC/X12 Reference
AK2 - Transaction Set Response Header

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Technical Notes

  1. The AK2 data segment is created in the Functional Acknowledgment (997) when a Transaction Set is encountered in the subject interchange.

Standard Information

NOTE: This information is referenced from ASC/X12 and may not be current.  For the latest information please visit the ASC/X12 web site.

To start acknowledgment of a single transaction set.

REF IDENTIFIER NAME REQ TYPE MIN/MAX NOTES
01 143  Transaction Set Identifier Code M ID 3/3  1
02 329  Transaction Set Control Number M AN 4/9  2
03 1705  Implementation Convention Reference O AN 1/35  3

Semantic Notes:

  1. AK201 is the transaction set ID found in the ST segment (ST01) in the transaction set being acknowledged. 
  2. AK202 is the transaction set control number found in the ST segment in the transaction set being acknowledged. 
  3. AK203 is the implementation convention reference, if any, found in the ST segment (ST03) in the transaction set being acknowledged.