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Purchase Order Acknowledgment
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X12 855 Purchase Order Acknowledgment

X12 Release 4010

This Draft Standard for Trial Use contains the format and establishes the data contents of the Purchase Order Acknowledgment Transaction Set (855) for use within the context of an Electronic Data Interchange (EDI) environment. The transaction set can be used to provide for customary and established business and industry practice relative to a seller's acknowledgment of a buyer's purchase order. This transaction set can also be used as notification of a vendor generated order. This usage advises a buyer that a vendor has or will ship merchandise as prearranged in their partnership.

Delimiters
  • ~ Segment
  • * Element
  • > Component
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    Overview
    ISA
    -
    Interchange Control Header
    Max use 1
    Required
    GS
    -
    Functional Group Header
    Max use 1
    Required
    heading
    ST
    010
    Transaction Set Header
    Max use 1
    Required
    BAK
    020
    Beginning Segment for Purchase Order Acknowledgment
    Max use 1
    Required
    REF
    050
    Reference Identification
    Max use 1
    Required
    PER
    060
    Administrative Communications Contact
    Max use 3
    Required
    DTM
    150
    Date/Time Reference
    Max use 10
    Required
    Party for whom Item is Ultimately Intended
    Ship To
    GE
    -
    Functional Group Trailer
    Max use 1
    Required
    IEA
    -
    Interchange Control Trailer
    Max use 1
    Required
    ISA

    Interchange Control Header

    RequiredMax use 1

    To start and identify an interchange of zero or more functional groups and interchange-related control segments

    Example
    ISA-01
    I01
    Authorization Information Qualifier
    Required

    Code to identify the type of information in the Authorization Information

    00
    No Authorization Information Present (No Meaningful Information in I02)
    ISA-02
    I02
    Authorization Information
    Required
    String (AN)
    Min 10Max 10

    Information used for additional identification or authorization of the interchange sender or the data in the interchange; the type of information is set by the Authorization Information Qualifier (I01)

    ISA-03
    I03
    Security Information Qualifier
    Required

    Code to identify the type of information in the Security Information

    00
    No Security Information Present (No Meaningful Information in I04)
    ISA-04
    I04
    Security Information
    Required
    String (AN)
    Min 10Max 10

    This is used for identifying the security information about the interchange sender or the data in the interchange; the type of information is set by the Security Information Qualifier (I03)

    ISA-05
    I05
    Interchange ID Qualifier
    Required
    Identifier (ID)
    Min 2Max 2

    Qualifier to designate the system/method of code structure used to designate the sender or receiver ID element being qualified

    Codes
    ISA-06
    I06
    Interchange Sender ID
    Required
    String (AN)
    Min 15Max 15

    Identification code published by the sender for other parties to use as the receiver ID to route data to them; the sender always codes this value in the sender ID element

    ISA-07
    I05
    Interchange ID Qualifier
    Required
    Identifier (ID)
    Min 2Max 2

    Qualifier to designate the system/method of code structure used to designate the sender or receiver ID element being qualified

    Codes
    ISA-08
    I07
    Interchange Receiver ID
    Required
    String (AN)
    Min 15Max 15

    Identification code published by the receiver of the data; When sending, it is used by the sender as their sending ID, thus other parties sending to them will use this as a receiving ID to route data to them

    ISA-09
    I08
    Interchange Date
    Required
    YYMMDD format

    Date of the interchange

    ISA-10
    I09
    Interchange Time
    Required
    HHMM format

    Time of the interchange

    ISA-11
    I10
    Interchange Control Standards Identifier
    Required

    Code to identify the agency responsible for the control standard used by the message that is enclosed by the interchange header and trailer

    U
    U.S. EDI Community of ASC X12, TDCC, and UCS
    ISA-12
    I11
    Interchange Control Version Number
    Required

    This version number covers the interchange control segments

    00401
    Draft Standards for Trial Use Approved for Publication by ASC X12 Procedures Review Board through October 1997
    ISA-13
    I12
    Interchange Control Number
    Required
    Numeric (N0)
    Min 9Max 9

    A control number assigned by the interchange sender

    ISA-14
    I13
    Acknowledgment Requested
    Required
    Identifier (ID)
    Min 1Max 1

    Code sent by the sender to request an interchange acknowledgment (TA1)

    0
    No Acknowledgment Requested
    1
    Interchange Acknowledgment Requested
    ISA-15
    I14
    Usage Indicator
    Required
    Identifier (ID)
    Min 1Max 1

    Code to indicate whether data enclosed by this interchange envelope is test, production or information

    I
    Information
    P
    Production Data
    T
    Test Data
    ISA-16
    I15
    Component Element Separator
    Required
    String (AN)
    Min 1Max 1

    Type is not applicable; the component element separator is a delimiter and not a data element; this field provides the delimiter used to separate component data elements within a composite data structure; this value must be different than the data element separator and the segment terminator

    >
    Component Element Separator

    Functional Group Header

    RequiredMax use 1

    To indicate the beginning of a functional group and to provide control information

    Example
    GS-01
    479
    Functional Identifier Code
    Required

    Code identifying a group of application related transaction sets

    PR
    Purchase Order Acknowledgement (855)
    GS-02
    142
    Application Sender's Code
    Required
    String (AN)
    Min 2Max 15

    Code identifying party sending transmission; codes agreed to by trading partners

    GS-03
    124
    Application Receiver's Code
    Required
    String (AN)
    Min 2Max 15

    Code identifying party receiving transmission. Codes agreed to by trading partners

    GS-04
    373
    Date
    Required
    CCYYMMDD format

    Date expressed as CCYYMMDD

    GS-05
    337
    Time
    Required
    HHMM, HHMMSS, HHMMSSD, or HHMMSSDD format

    Time expressed in 24-hour clock time as follows: HHMM, or HHMMSS, or HHMMSSD, or HHMMSSDD, where H = hours (00-23), M = minutes (00-59), S = integer seconds (00-59) and DD = decimal seconds; decimal seconds are expressed as follows: D = tenths (0-9) and DD = hundredths (00-99)

    GS-06
    28
    Group Control Number
    Required
    Numeric (N0)
    Min 1Max 9

    Assigned number originated and maintained by the sender

    GS-07
    455
    Responsible Agency Code
    Required
    Identifier (ID)
    Min 1Max 2

    Code used in conjunction with Data Element 480 to identify the issuer of the standard

    T
    Transportation Data Coordinating Committee (TDCC)
    X
    Accredited Standards Committee X12
    GS-08
    480
    Version / Release / Industry Identifier Code
    Required

    Code indicating the version, release, subrelease, and industry identifier of the EDI standard being used, including the GS and GE segments; if code in DE455 in GS segment is X, then in DE 480 positions 1-3 are the version number; positions 4-6 are the release and subrelease, level of the version; and positions 7-12 are the industry or trade association identifiers (optionally assigned by user); if code in DE455 in GS segment is T, then other formats are allowed

    004010
    Draft Standards Approved for Publication by ASC X12 Procedures Review Board through October 1997

    Heading

    ST
    010
    Heading > ST

    Transaction Set Header

    RequiredMax use 1

    To indicate the start of a transaction set and to assign a control number

    Example
    ST-01
    143
    Transaction Set Identifier Code
    Required

    Code uniquely identifying a Transaction Set

    • The transaction set identifier (ST01) used by the translation routines of the interchange partners to select the appropriate transaction set definition (e.g., 810 selects the Invoice Transaction Set).
    855
    Purchase Order Acknowledgment
    ST-02
    329
    Transaction Set Control Number
    Required
    Numeric (N)
    Min 4Max 9

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

    BAK
    020
    Heading > BAK

    Beginning Segment for Purchase Order Acknowledgment

    RequiredMax use 1

    To indicate the beginning of the Purchase Order Acknowledgment Transaction Set and transmit identifying numbers and dates

    Usage notes

    Example:

    BAK00AP12345678919981001
    BAK05AP12345678919981001
    BAK01AP12345678919981001\

    Example
    BAK-01
    353
    Transaction Set Purpose Code
    Required

    Code identifying purpose of transaction set

    Usage notes

    The "00" qualifier should be sent for new orders only. The "05" should
    be sent when changing an order. The "01" should be sent when canceling an order.

    00
    Original
    01
    Cancellation
    05
    Replace
    BAK-02
    587
    Acknowledgment Type
    Required

    Code specifying the type of acknowledgment

    AP
    Acknowledge - Product Replenishment
    BAK-03
    324
    Purchase Order Number
    Required
    String (AN)
    Min 1Max 22

    Identifying number for Purchase Order assigned by the orderer/purchaser

    Usage notes

    In the BAK03, a maximum field length of nine digits can be used for purchase order numbers. If the purchase order number is less than nine digits, it should be zero suppressed (no spaces included in the data element).

    Unique purchase order numbers must be used when submitting Reverse Purchase Orders to Lowe's. An application on Loweslink™ will allow you to reserve purchase order numbers for this purpose. Documentation on how to register for this application as well as how to use the application can be found at LowesLink.com. Look under Partner Information / EDI Specifications and Business Examples / 855 - PO Reservation.

    BAK-04
    373
    Date
    Required
    CCYYMMDD format

    Date expressed as CCYYMMDD

    • BAK04 is the date assigned by the purchaser to purchase order.
    Usage notes

    This should always be an eight-digit date (CCYYMMDD).

    REF
    050
    Heading > REF

    Reference Identification

    RequiredMax use >1

    To specify identifying information

    Usage notes

    Example:

    REFWO22222
    REFAN123456789\

    Example
    REF-01
    128
    Reference Identification Qualifier
    Required

    Code qualifying the Reference Identification

    AN
    Cross-Dock Truck Load Number
    WO
    Replenishment Program (RP) Reference Number
    REF-02
    127
    Reference Identification
    Required
    String (AN)
    Min 1Max 30

    Reference information as defined for a particular Transaction Set or as specified by the Reference Identification Qualifier

    Usage notes

    For the Replenishment Program (RP) Reference number (REF01=WO), Lowe's Merchandising must provide the five digit internal RP reference number to be sent in this field. The RP Reference Number can vary based on the store/item combination and it can periodically change. Merchandising will advise you of any changes.

    For the Cross-Dock Truck Load Number (REF01=AN), if you ship vendor prepared cross-dock (VPXD) orders to Lowe's, all VPXD orders that are to be shipped together on the same truck should be identified by the Truck Load Number field. The Truck Load Number assigned to VPXD orders should be the purchase order number from any VPXD order on the truck. The new VPXD Truck Load Number can be up to nine digits in length, with leading zeros suppressed. The Truck Load Number should be sent in the REF segment where the REF01 field should include ‘AN’ as the qualifier and the REF02 should contain the VPXD Truck Load Number.

    This is an example of VPXD orders to be shipped on the same truck.

    PO Number 123456789 VPXD Truck Load Number REFAN123456789

    PO Number 123456790 VPXD Truck Load Number REFAN123456789

    PO Number 123456791 VPXD Truck Load Number REFAN123456789

    See the N1 segment for additional information on VPXD orders.

    PER
    060
    Heading > PER

    Administrative Communications Contact

    RequiredMax use 3

    To identify a person or office to whom administrative communications should be directed

    Usage notes

    This segment should be used to communicate the name of the individual at our retail locations who placed the order. In case of a change, it should contain the name at the vendor location who is requesting the change.

    Example:

    PEROCJOHN DOE\

    Example
    PER-01
    366
    Contact Function Code
    Required

    Code identifying the major duty or responsibility of the person or group named

    OC
    Order Contact
    PER-02
    93
    Name
    Required
    String (AN)
    Min 1Max 60

    Free-form name

    DTM
    150
    Heading > DTM

    Date/Time Reference

    RequiredMax use 10

    To specify pertinent dates and times

    Usage notes

    Example:

    DTM06719980826
    DTM06819980825\

    Example
    DTM-01
    374
    Date/Time Qualifier
    Required

    Code specifying type of date or time, or both date and time

    Usage notes

    Both the Delivery Date and the Ship Date are required on all 855 documents.

    067
    Current Schedule Delivery
    068
    Current Schedule Ship
    DTM-02
    373
    Date
    Required
    CCYYMMDD format

    Date expressed as CCYYMMDD

    Usage notes

    This date should always be an eight-digit date (CCYYMMDD).

    N1 Party for whom Item is Ultimately Intended
    OptionalMax >1
    N1
    300
    Heading > Party for whom Item is Ultimately Intended > N1

    Name

    RequiredMax use 1

    To identify a party by type of organization, name, and code

    Usage notes

    Example:

    N1ST**94960
    N1MA**94465\

    Example
    N1-01
    98
    Entity Identifier Code
    Required

    Code identifying an organizational entity, a physical location, property or an individual

    Usage notes

    The MA code is sent for cross-dock purchase orders ONLY. The MA code will reference the ultimate store that will receive the cross-dock purchase order from Lowe's distribution center. The invoice sent back to Lowe's should be for the ultimate store for which the cross-dock order was intended.

    MA
    Party for whom Item is Ultimately Intended
    N1-03
    66
    Identification Code Qualifier
    Required

    Code designating the system/method of code structure used for Identification Code (67)

    94
    Code assigned by the organization that is the ultimate destination of the transaction set
    N1-04
    67
    Identification Code
    Required
    String (AN)
    Min 2Max 80

    Code identifying a party or other code

    • This segment, used alone, provides the most efficient method of providing organizational identification. To obtain this efficiency the "ID Code" (N104) must provide a key to the table maintained by the transaction processing party.
    Usage notes

    This element should contain the location number for either the store or distribution center to which you are shipping. Only send one leading zero for stores 1 through 9. For all other stores, just send us the actual store number. Examples: store 02, store 23, store 302, store 1066.

    N1 Party for whom Item is Ultimately Intended end
    N1 Ship To
    RequiredMax >1
    N1
    300
    Heading > Ship To > N1

    Name

    RequiredMax use 1

    To identify a party by type of organization, name, and code

    Usage notes

    Example:

    N1ST**94960
    N1MA**94465\

    Example
    N1-01
    98
    Entity Identifier Code
    Required

    Code identifying an organizational entity, a physical location, property or an individual

    Usage notes

    The ST code should always be sent, referencing either a distribution center or store. For a cross-dock order, the ST will represent the distribution center. The invoice sent back to Lowe's should be for the ultimate store for which the cross-dock order was intended

    ST
    Ship To
    N1-03
    66
    Identification Code Qualifier
    Required

    Code designating the system/method of code structure used for Identification Code (67)

    94
    Code assigned by the organization that is the ultimate destination of the transaction set
    N1-04
    67
    Identification Code
    Required
    String (AN)
    Min 2Max 80

    Code identifying a party or other code

    • This segment, used alone, provides the most efficient method of providing organizational identification. To obtain this efficiency the "ID Code" (N104) must provide a key to the table maintained by the transaction processing party.
    Usage notes

    This element should contain the location number for either the store or distribution center to which you are shipping. Only send one leading zero for stores 1 through 9. For all other stores, just send us the actual store number. Examples: store 02, store 23, store 302, store 1066.

    N1 Ship To end
    Heading end

    Detail

    PO1 Loop
    RequiredMax >1
    PO1
    010
    Detail > PO1 Loop > PO1

    Baseline Item Data

    RequiredMax use 1

    To specify basic and most frequently used line item data

    • PO102 is required.
    Usage notes

    Example:

    PO125EA2.5CB*12345\

    Example
    PO1-02
    330
    Quantity Ordered
    Required
    Decimal number (R)
    Min 1Max 15

    Quantity ordered

    PO1-03
    355
    Unit or Basis for Measurement Code
    Required
    Identifier (ID)
    Min 2Max 2

    Code specifying the units in which a value is being expressed, or manner in which a measurement has been taken

    PO1-04
    212
    Unit Price
    Optional
    Decimal number (R)
    Min 1Max 15

    Price per unit of product, service, commodity, etc.

    Usage notes

    The price should be sent with a decimal point only when needed, e.g. $15.95 should be sent as "15.95", and $29.00 should be sent as "29".

    PO1-06
    235
    Product/Service ID Qualifier
    Required

    Code identifying the type/source of the descriptive number used in Product/Service ID (234)

    • PO106 through PO125 provide for ten different product/service IDs per each item. For example: Case, Color, Drawing No., U.P.C. No., ISBN No., Model No., or SKU.
    CB
    Buyer's Catalog Number
    UP
    U.P.C. Consumer Package Code (1-5-5-1)
    PO1-07
    234
    Product/Service ID
    Required
    String (AN)
    Min 1Max 48

    Identifying number for a product or service

    Usage notes

    This element should contain Lowe's item number or the UPC number for the product being shipped.

    PO1 Loop end
    Detail end

    Summary

    CTT Loop
    RequiredMax >1
    CTT
    010
    Summary > CTT Loop > CTT

    Transaction Totals

    RequiredMax use 1

    To transmit a hash total for a specific element in the transaction set

    • The number of line items (CTT01) is the accumulation of the number of PO1 segments. If used, hash total (CTT02) is the sum of the value of quantities ordered (PO102) for each PO1 segment.
    Usage notes

    Example:

    CTT*1\

    Example
    CTT-01
    354
    Number of Line Items
    Required
    Numeric (N0)
    Min 1Max 6

    Total number of line items in the transaction set

    CTT Loop end
    SE
    030
    Summary > SE

    Transaction Set Trailer

    RequiredMax use 1

    To indicate the end of the transaction set and provide the count of the transmitted segments (including the beginning (ST) and ending (SE) segments)

    Example
    SE-01
    96
    Number of Included Segments
    Required
    Numeric (N0)
    Min 1Max 10

    Total number of segments included in a transaction set including ST and SE segments

    SE-02
    329
    Transaction Set Control Number
    Required
    Numeric (N)
    Min 4Max 9

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

    Summary end

    Functional Group Trailer

    RequiredMax use 1

    To indicate the end of a functional group and to provide control information

    Example
    GE-01
    97
    Number of Transaction Sets Included
    Required
    Numeric (N0)
    Min 1Max 6

    Total number of transaction sets included in the functional group or interchange (transmission) group terminated by the trailer containing this data element

    GE-02
    28
    Group Control Number
    Required
    Numeric (N0)
    Min 1Max 9

    Assigned number originated and maintained by the sender

    Interchange Control Trailer

    RequiredMax use 1

    To define the end of an interchange of zero or more functional groups and interchange-related control segments

    Example
    IEA-01
    I16
    Number of Included Functional Groups
    Required
    Numeric (N0)
    Min 1Max 5

    A count of the number of functional groups included in an interchange

    IEA-02
    I12
    Interchange Control Number
    Required
    Numeric (N0)
    Min 9Max 9

    A control number assigned by the interchange sender

    EDI Samples

    sample

    ST*855*000000001~
    BAK*00*AP*123456789*19981001~
    REF*WO*22222~
    REF*AN*123456789~
    PER*OC*JOHN DOE~
    DTM*067*19980826~
    DTM*068*19980825~
    N1*ST**94*960~
    N1*MA**94*465~
    PO1**25*EA*2.5**CB*12345~
    CTT*1~
    SE*12*000000001~

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