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EDI 855 Sample File: PO Acknowledgment

One line accepted, one backordered, one quantity changed. Valid X12 004010, 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 855 is the supplier's answer to an 850 purchase order. This sample acknowledges PO 4500123456 with BAK02 AC (acknowledge with detail and change) and one ACK segment per line: line 1 accepted, line 2 backordered to Nov 30, and line 3 accepted at 180 of the 200 ordered.

Standard
X12 855
Version
004010
Sent by
Supplier to buyer
Segments
15

sample-855-purchase-order-acknowledgment.edi

From VENDOR123 to WALMART. Click a line to jump to its explanation.

Open in EDI Inspector
ISA*00*          *00*          *ZZ*VENDOR123      *ZZ*WALMART        *231121*0900*U*00401*000000101*0*P*>~GS*PR*VENDOR123*WALMART*20231121*0900*101*X*004010~ST*855*0001~BAK*00*AC*4500123456*20231120****SO-77120*20231121~N1*ST*WALMART STORE 001*92*001~PO1*001*100*EA*15.99*PE*VN*PROD-12345*UP*012345678905~ACK*IA*100*EA*068*20231123~PO1*002*50*EA*29.99*PE*VN*PROD-67890*UP*012345678912~ACK*IB*50*EA*068*20231130~PO1*003*200*EA*9.99*PE*VN*PROD-11111*UP*012345678929~ACK*IQ*180*EA*068*20231123~CTT*3~SE*11*0001~GE*1*101~IEA*1*000000101~

855 Sample, Segment by Segment

Every segment and element, with what each code means. The 5 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
    VENDOR123
    ISA07
    Receiver ID qualifier
    ZZMutually defined
    ISA08
    Interchange receiver ID
    WALMART
    ISA09
    Interchange date
    231121Nov 21, 2023
    ISA10
    Interchange time
    090009:00
    ISA11
    Standards identifier (repetition separator in 005010)
    U
    ISA12
    Interchange control version number
    00401
    ISA13
    Interchange control number
    000000101
    ISA14
    Acknowledgment requested (TA1)
    0No acknowledgment requested
    ISA15
    Usage indicator
    PProduction
    ISA16
    Component element separator
    >
  2. 2GSFunctional group header
    GS01
    Functional identifier code
    PRPurchase order acknowledgment (855)
    GS02
    Application sender's code
    VENDOR123
    GS03
    Application receiver's code
    WALMART
    GS04
    Date
    20231121Nov 21, 2023
    GS05
    Time
    090009:00
    GS06
    Group control number
    101
    GS07
    Responsible agency code
    XAccredited Standards Committee X12
    GS08
    Version / release / industry identifier
    004010
  3. 3STTransaction set header
    ST01
    Transaction set identifier code
    855Purchase order acknowledgment
    ST02
    Transaction set control number
    0001
  4. 4BAKBeginning segment for purchase order acknowledgment

    BAK02 AC: acknowledge with detail and change. BAK03 is the buyer's PO number; BAK08 is the supplier's own sales order number.

    BAK01
    Transaction set purpose code
    00Original
    BAK02
    Acknowledgment type
    ACAcknowledge with detail and change
    BAK03
    Purchase order number
    4500123456
    BAK04
    Purchase order date
    20231120Nov 20, 2023
    BAK08
    Seller's order number
    SO-77120
    BAK09
    Acknowledgment date
    20231121Nov 21, 2023
  5. 5N1Party identification
    N101
    Entity identifier code
    STShip to
    N102
    Name
    WALMART STORE 001
    N103
    Identification code qualifier
    92Assigned by buyer
    N104
    Identification code
    001
  6. 6PO1Baseline item data (order line)
    PO101
    Line number (assigned identification)
    001
    PO102
    Quantity ordered
    100
    PO103
    Unit of measure
    EAEach
    PO104
    Unit price
    15.99
    PO105
    Basis of unit price
    PEPrice per each
    PO106
    Product/service ID qualifier
    VNVendor item
    PO107
    Product/service ID
    PROD-12345
    PO108
    Product/service ID qualifier
    UPUPC
    PO109
    Product/service ID
    012345678905
  7. 7ACKLine item acknowledgment

    IA: accepted as ordered. ACK04 068 is the current scheduled ship date, so it ships Nov 23.

    ACK01
    Line item status code
    IAAccepted
    ACK02
    Quantity
    100
    ACK03
    Unit of measure
    EAEach
    ACK04
    Date/time qualifier
    068Current schedule ship
    ACK05
    Date
    20231123Nov 23, 2023
  8. 8PO1Baseline item data (order line)
    PO101
    Line number (assigned identification)
    002
    PO102
    Quantity ordered
    50
    PO103
    Unit of measure
    EAEach
    PO104
    Unit price
    29.99
    PO105
    Basis of unit price
    PEPrice per each
    PO106
    Product/service ID qualifier
    VNVendor item
    PO107
    Product/service ID
    PROD-67890
    PO108
    Product/service ID qualifier
    UPUPC
    PO109
    Product/service ID
    012345678912
  9. 9ACKLine item acknowledgment

    IB: backordered. All 50 ship on Nov 30.

    ACK01
    Line item status code
    IBBackordered
    ACK02
    Quantity
    50
    ACK03
    Unit of measure
    EAEach
    ACK04
    Date/time qualifier
    068Current schedule ship
    ACK05
    Date
    20231130Nov 30, 2023
  10. 10PO1Baseline item data (order line)
    PO101
    Line number (assigned identification)
    003
    PO102
    Quantity ordered
    200
    PO103
    Unit of measure
    EAEach
    PO104
    Unit price
    9.99
    PO105
    Basis of unit price
    PEPrice per each
    PO106
    Product/service ID qualifier
    VNVendor item
    PO107
    Product/service ID
    PROD-11111
    PO108
    Product/service ID qualifier
    UPUPC
    PO109
    Product/service ID
    012345678929
  11. 11ACKLine item acknowledgment

    IQ: accepted with a quantity change, 180 of the 200 ordered.

    ACK01
    Line item status code
    IQAccepted, quantity changed
    ACK02
    Quantity
    180
    ACK03
    Unit of measure
    EAEach
    ACK04
    Date/time qualifier
    068Current schedule ship
    ACK05
    Date
    20231123Nov 23, 2023
  12. 12CTTTransaction totals

    CTT01 counts PO1 lines.

    CTT01
    Number of line items
    3
  13. 13SETransaction set trailer
    SE01
    Number of included segments (ST to SE)
    11
    SE02
    Transaction set control number (matches ST02)
    0001
  14. 14GEFunctional group trailer
    GE01
    Number of transaction sets included
    1
    GE02
    Group control number (matches GS06)
    101
  15. 15IEAInterchange control trailer
    IEA01
    Number of included functional groups
    1
    IEA02
    Interchange control number (matches ISA13)
    000000101

The Same File as a Document

What a person reads once the codes are translated. Download it as a PDF from the menu above.

Purchase Order Acknowledgment

SO-77120

Nov 21, 2023

PO number
4500123456
PO date
Nov 20, 2023
Type
Acknowledge with detail and change

Ship to

WALMART STORE 001

Assigned by buyer: 001

LineItem / UPCOrderedConfirmedUnitUnit priceStatusCurrent schedule ship
001PROD-12345012345678905100100Each$15.99AcceptedNov 23, 2023
002PROD-678900123456789125050Each$29.99BackorderedNov 30, 2023
003PROD-11111012345678929200180Each$9.99Accepted, quantity changedNov 23, 2023
Lines
3
Total quantity
330
Merchandise
$4,896.70
Total
$4,896.70

Compare it with the 850

Compare EDI lines up the PO, acknowledgment, ship notice and invoice and shows every quantity and price difference.

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About This 855 Sample

Retailers use the 855 to update their open order before the goods arrive. An 855 that says nothing about a short line is worse than none: the buyer plans for the full quantity and then charges back the fill-rate gap.

Each PO1 repeats the line from the 850 and the ACK under it gives the status code, the quantity and the date. Send the 855 within the window your partner sets, often 24 to 48 hours.

For every segment the standard allows and how retailers use them, read the EDI 855 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 855?

An EDI 855 is the supplier's answer to an 850 purchase order. This sample acknowledges PO 4500123456 with BAK02 AC (acknowledge with detail and change) and one ACK segment per line: line 1 accepted, line 2 backordered to Nov 30, and line 3 accepted at 180 of the 200 ordered.

Can I use this EDI 855 sample to test my system?

Yes. It is a complete, valid X12 file of 15 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 855 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.

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