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EDI 997 Functional Acknowledgment

The Functional Acknowledgment (FA), or 997, is sent as a response that an EDI message received by the remote party. When you receive a 997, you only know that your document arrived and was processed by the recipient. It does not mean that the trading partner agrees with the contents of the message, or that the message met their business requirements. At the most basic level, the 997 will only contain an acceptance or rejection notification. At more advanced levels, the 997 could contain  more detailed information describing individual elements that contain syntax errors when rejections occur.

This article is intended to help you understand the contents of a 997.

Key data elements in 997

This table contains the key data elements in the EDI 997 Functional Acknowledgement along with descriptions to help you understand their meaning:

Data  Element Description
AK1 Group Acknowledgment (Refers to GS segment)
AK2 Document Acknowledgment (Refers to ST segment)
AK3 

Reports Errors in a specific segment.
01: Segment ID code
02: Segment Position in Transaction Set
03: Segment ID code
04: Segment Syntax Error Code. Allowed codes include the following:

  • 1: Unrecognized segment ID
  • 2: Unexpected segment
  • 3: Mandatory segment missing
  • 4: Loop Occurs Over Maximum Times
  • 5: Segment Exceeds Maximum Use
  • 6: Segment Not in Defined Tranasction Set
  • 7: Segment Not in Proper Sequence
  • 8: Segment Has Data Element Errors
AK4

Reports Errors in a specific element

01: Lists the Element in error
02: Lists the ID in EDI dictionary of the element
03: Code giving a general reason for the error

  • 1: Mandatory data element missing
  • 2: Conditional data element missing
  • 3: Too many data elements
  • 4: Data element too short
  • 5: Data element too long
  • 6: Invalid character in data element
  • 7: Invalid code value
  • 8: Invalid date
  • 9: Invalid time
  • 10: Exclusion condition violated

04: Shows the bad data
AK5 

Type of acknowledgment

01: Lists the Acknowledgment Status

  • A: Accepted
  • E: Accepted with Errors noted
  • M: Rejected; message authentication
  • P: Partially accepted
  • R: Rejected
  • W: Rejected
  • X: Rejected

02: Transaction set syntax Error Code

  • 1: Transaction set not supported
  • 2: Transaction set trailer missing
  • 3: Transaction control #’s don’t match
  • 4: Number of segments don’t match count
  • 5: One or more segments in error
  • 6: Missing transaction set identifier
  • 7: Missing or invalid transaction set control #
  • 16: Syntax Error
  • 23: Transaction set control # not unique
AK9

Group Response

  • Additional dates (such as cancel by dates)

Common issues regarding EDI 997

Errors in the EDI 997 typically arise from not adhering to trading partner specifications or EDI standards. A Functional Acknowledgement may be rejected for several reasons, including:

  • Violates character length requirements
  • Mismatched control counters or data types
  • Missing mandatory data, such as segments or elements
  • Contains invalid data, such as invalid characters, codes, conditions or qualifiers

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