Skip to content
OrderSync LogoOrderSync

EDI 999 Sample File: Implementation Acknowledgment

Rejects an 856: SCAC too long, bad unit code. Valid X12 005010X231A1, explained segment by segment, free to download.

A synthetic file: made-up companies, IDs and amounts, safe to load into a test system.

An EDI 999 is the 005010 version of the 997, with IK3, IK4 and IK5 in place of AK3, AK4 and AK5. This sample rejects an 856: one IK3 and IK4 pair says the SCAC in TD503 is too long, another says CAS is not a valid unit of measure in SN103.

Standard
X12 999
Version
005010X231A1
Sent by
Receiver to sender
Segments
14

sample-999-implementation-acknowledgment.edi

From GROCERYCO to SUNNYFARMS. Click a line to jump to its explanation.

Open in EDI Inspector
ISA*00*          *00*          *ZZ*GROCERYCO      *ZZ*SUNNYFARMS     *261014*0603*^*00501*000088101*0*P*>~GS*FA*GROCERYCO*SUNNYFARMS*20261014*0603*88101*X*005010X231A1~ST*999*0001*005010X231A1~AK1*SH*4498*005010~AK2*856*0001~IK3*TD5*5*HL*8~IK4*3*140*5*ODFLX~IK3*SN1*13*HL*8~IK4*3*355*7*CAS~IK5*R*I5~AK9*R*1*1*0~SE*10*0001~GE*1*88101~IEA*1*000088101~

999 Sample, Segment by Segment

Every segment and element, with what each code means. The 7 segments with a note are open; open any other to see its elements.

  1. 1ISAInterchange control header
    ISA01
    Authorization information qualifier
    00
    ISA03
    Security information qualifier
    00
    ISA05
    Sender ID qualifier
    ZZMutually defined
    ISA06
    Interchange sender ID
    GROCERYCO
    ISA07
    Receiver ID qualifier
    ZZMutually defined
    ISA08
    Interchange receiver ID
    SUNNYFARMS
    ISA09
    Interchange date
    261014Oct 14, 2026
    ISA10
    Interchange time
    060306:03
    ISA11
    Standards identifier (repetition separator in 005010)
    ^
    ISA12
    Interchange control version number
    00501
    ISA13
    Interchange control number
    000088101
    ISA14
    Acknowledgment requested (TA1)
    0No acknowledgment requested
    ISA15
    Usage indicator
    PProduction
    ISA16
    Component element separator
    >
  2. 2GSFunctional group header
    GS01
    Functional identifier code
    FAFunctional acknowledgment (997, 999)
    GS02
    Application sender's code
    GROCERYCO
    GS03
    Application receiver's code
    SUNNYFARMS
    GS04
    Date
    20261014Oct 14, 2026
    GS05
    Time
    060306:03
    GS06
    Group control number
    88101
    GS07
    Responsible agency code
    XAccredited Standards Committee X12
    GS08
    Version / release / industry identifier
    005010X231A1
  3. 3STTransaction set header

    ST03 carries the implementation guide reference, which 005010 files add.

    ST01
    Transaction set identifier code
    999Implementation acknowledgment
    ST02
    Transaction set control number
    0001
    ST03
    Implementation convention reference
    005010X231A1
  4. 4AK1Functional group response header

    Answers the ship notice group (SH) with control number 4498.

    AK101
    Functional identifier code of the group answered
    SHShip notice (856)
    AK102
    Group control number answered (its GS06)
    4498
    AK103
    Version / release of the group answered
    005010
  5. 5AK2Transaction set response header
    AK201
    Transaction set identifier code answered
    856Ship notice / manifest
    AK202
    Transaction set control number answered (its ST02)
    0001
  6. 6IK3Error identification (segment)

    TD5 at position 5 of the 856 has element errors (IK304 8).

    IK301
    Segment ID in error
    TD5
    IK302
    Segment position in the transaction set
    5
    IK303
    Loop identifier code
    HL
    IK304
    Implementation segment syntax error code
    8Segment has data element errors
  7. 7IK4Implementation data element note

    TD503 (element 140, the SCAC) is too long: ODFLX is 5 characters and a SCAC is 2 to 4.

    IK401
    Element position in the segment
    3
    IK402
    Data element reference number
    140
    IK403
    Implementation data element syntax error code
    5Data element too long
    IK404
    Copy of the bad data element
    ODFLX
  8. 8IK3Error identification (segment)
    IK301
    Segment ID in error
    SN1
    IK302
    Segment position in the transaction set
    13
    IK303
    Loop identifier code
    HL
    IK304
    Implementation segment syntax error code
    8Segment has data element errors
  9. 9IK4Implementation data element note

    SN103 (element 355, unit of measure) holds CAS, which is not a valid code. Cases are CA.

    IK401
    Element position in the segment
    3
    IK402
    Data element reference number
    355
    IK403
    Implementation data element syntax error code
    7Invalid code value
    IK404
    Copy of the bad data element
    CAS
  10. 10IK5Transaction set response trailer

    R: rejected. I5: one or more segments in error.

    IK501
    Transaction set acknowledgment code
    RRejected
    IK502
    Implementation transaction set syntax error code
    I5Implementation one or more segments in error
  11. 11AK9Functional group response trailer

    Group rejected: 1 set included, 1 received, 0 accepted.

    AK901
    Functional group acknowledge code
    RRejected
    AK902
    Number of transaction sets included
    1
    AK903
    Number of received transaction sets
    1
    AK904
    Number of accepted transaction sets
    0
  12. 12SETransaction set trailer
    SE01
    Number of included segments (ST to SE)
    10
    SE02
    Transaction set control number (matches ST02)
    0001
  13. 13GEFunctional group trailer
    GE01
    Number of transaction sets included
    1
    GE02
    Group control number (matches GS06)
    88101
  14. 14IEAInterchange control trailer
    IEA01
    Number of included functional groups
    1
    IEA02
    Interchange control number (matches ISA13)
    000088101

Explain this 999

The EDI rejection explainer turns every IK3 and IK4 into a plain sentence and a fix.

Open the free tool

About This 999 Sample

A 999 checks the file against the implementation guide, so it catches things a 997 cannot, such as a code your partner does not allow. Each IK3 names a segment and its position, and the IK4 under it names the element, the error code and a copy of the bad value.

The fix is in the original file: here, send FXFE-style four-letter SCACs and use CA for cases.

For every segment the standard allows and how retailers use them, read the 997 and 999 guide. To check a file of your own, paste it into the EDI Inspector, or browse all 22 EDI sample files.

Related Sample Files

Frequently Asked Questions

What is an EDI 999?

An EDI 999 is the 005010 version of the 997, with IK3, IK4 and IK5 in place of AK3, AK4 and AK5. This sample rejects an 856: one IK3 and IK4 pair says the SCAC in TD503 is too long, another says CAS is not a valid unit of measure in SN103.

Can I use this EDI 999 sample to test my system?

Yes. It is a complete, valid X12 file of 14 segments with made-up companies, IDs and amounts. Download it as .edi or .txt, load it into your translator or ERP test environment, and change the sender and receiver IDs to your test IDs if your system routes by them.

How do I check my own EDI 999 file?

Paste it into the free OrderSync EDI Inspector. It names every segment and element, checks the envelope counts and control numbers, tests GS1 check digits, and points at the exact segment a trading partner would reject. Nothing is uploaded: the file is read in your browser.

Related Free Tools

EDI Viewer and Validator

Open an X12 or EDIFACT file, see every segment and element named, find errors by segment, check retailer rules and generate a 997.

EDI to PDF Converter

Turn an X12, EDIFACT or TRADACOMS order, ship notice or invoice into a readable PDF, with lines in Excel or CSV.

EDI Response Builder (855, 856, 810)

Paste an EDI 850 and get draft 855, 856 and 810 replies, with SSCC carton numbers, validated and ready to send.

Compare EDI Documents (3-Way Match)

Check a PO against its change, acknowledgment, ship notice and invoice line by line: quantities, prices and missing lines.

EDI Rejection Explainer

Paste a 997, 999, TA1, 824 or CONTRL. Every rejection code in plain English, located in your original file, with the fix.