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

ISA Interchange Control Header

Required · Max use 1

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

ISA-01 · I01 · Authorization Information Qualifier · Required · Identifier (ID)

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 10 Max 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 · Identifier (ID)

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 10 Max 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)

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

• 01: Duns (Dun & Bradstreet)

ISA-06 · I06 · Interchange Sender ID · Required · String (AN) · Min 15 Max 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 2 Max 2

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

Codes

• 01: Duns (Dun & Bradstreet)
• 02: SCAC (Standard Carrier Alpha Code)
• 03: FMC (Federal Maritime Commission)
• 04: IATA (International Air Transport Association)
• 08: UCC EDI Communications ID (Comm ID)
• 09: X.121 (CCITT)
• 10: Department of Defense (DoD) Activity Address Code
• 11: DEA (Drug Enforcement Administration)
• 12: Phone (Telephone Companies)
• 13: UCS Code (The UCS Code is a Code Used for UCS Transmissions; it includes the Area Code and Telephone Number of a Modem; it Does Not Include Punctuation, Blanks or Access Code)
• 14: Duns Plus Suffix
• 15: Petroleum Accountants Society of Canada Company Code
• 16: Duns Number With 4-Character Suffix
• 17: American Bankers Association (ABA) Transit Routing Number (Including Check Digit, 9 Digit)
• 18: Association of American Railroads (AAR) Standard Distribution Code
• 19: EDI Council of Australia (EDICA) Communications ID Number (COMM ID)
• 20: Health Industry Number (HIN)
• 21: Integrated Postsecondary Education Data System, or (IPEDS)
• 22: Federal Interagency Commission on Education, or FICE
• 23: National Center for Education Statistics Common Core of Data 12-Digit Number for Pre-K-Grade 12 Institutes, or NCES
• 24: The College Board's Admission Testing Program 4-Digit Code of Postsecondary Institutes, or ATP
• 25: American College Testing Program 4-Digit Code of Postsecondary Institutions, or ACT
• 26: Statistics of Canada List of Postsecondary Institutions
• 27: Carrier Identification Number as assigned by Health Care Financing Administration (HCFA)
• 28: Fiscal Intermediary Identification Number as assigned by Health Care Financing Administration (HCFA)
• 29: Medicare Provider and Supplier Identification Number as assigned by Health Care Financing Administration (HCFA)
• 30: U.S. Federal Tax Identification Number
• 31: Jurisdiction Identification Number Plus 4 as assigned by the International Association of Industrial Accident Boards and Commissions (IAIABC)
• 32: U.S. Federal Employer Identification Number (FEIN)
• 33: National Association of Insurance Commissioners Company Code (NAIC)
• 34: Medicaid Provider and Supplier Identification Number as assigned by individual State Medicaid Agencies in conjunction with Health Care Financing Administration (HCFA)
• 35: Statistics Canada Canadian College Student Information System Institution Codes
• 36: Statistics Canada University Student Information System Institution Codes
• 37: Society of Property Information Compilers and Analysts
• AM: Association Mexicana del Codigo de Producto (AMECOP) Communication ID
• NR: National Retail Merchants Association (NRMA) - Assigned
• SN: Standard Address Number
• ZZ: Mutually Defined

ISA-08 · I07 · Interchange Receiver ID · Required · String (AN) · Min 15 Max 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 · Date (DT) · YYMMDD format

Date of the interchange

ISA-10 · I09 · Interchange Time · Required · Time (TM) · HHMM format

Time of the interchange

ISA-11 · I10 · Interchange Control Standards Identifier · Required · Identifier (ID)

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 · Identifier (ID)

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 9 Max 9

A control number assigned by the interchange sender

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

GS Functional Group Header

Required · Max use 1

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

GS-01 · 479 · Functional Identifier Code · Required · Identifier (ID)

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 2 Max 15

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

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

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

GS-04 · 373 · Date · Required · Date (DT) · CCYYMMDD format

Date expressed as CCYYMMDD

GS-05 · 337 · Time · Required · Time (TM) · 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 1 Max 9

Assigned number originated and maintained by the sender

GS-07 · 455 · Responsible Agency Code · Required · Identifier (ID) · Min 1 Max 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 · String (AN)

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

010 Heading > ST

ST Transaction Set Header

Required · Max use 1

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

ST-01 · 143 · Transaction Set Identifier Code · Required · Identifier (ID)

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 4 Max 9

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

020 Heading > BAK

BAK Beginning Segment for Purchase Order Acknowledgment

Required · Max use 1

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

BAK-01 · 353 · Transaction Set Purpose Code · Required · Identifier (ID) · Min 2 Max 2

Code identifying purpose of transaction set

BAK-02 · 587 · Acknowledgment Type · Required · Identifier (ID) · Min 2 Max 2

Code specifying the type of acknowledgment

BAK-03 · 324 · Purchase Order Number · Required · String (AN) · Min 1 Max 22

Identifying number for Purchase Order assigned by the orderer/purchaser

BAK-04 · 373 · Date · Required · Date (DT) · CCYYMMDD format

Date expressed as CCYYMMDD

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

050 Heading > REF

REF Reference Identification

Required · Max use >1

To specify identifying information

REF-01 · 128 · Reference Identification Qualifier · Required · Identifier (ID)

Code qualifying the Reference Identification

• VR: Vendor ID Number

REF-02 · 127 · Reference Identification · Required · String (AN) · Min 1 Max 30

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

Usage notes

Vendor ID

REF-03 · 352 · Description · Optional · String (AN) · Min 1 Max 80

A free-form description to clarify the related data elements and their content

Usage notes

Warehouse Zip Code

N1 Loop Required Max >1

300 Heading > N1 Loop > N1

N1 Name

Required · Max use 1

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

If either Identification Code Qualifier (N1-03) or Identification Code (N1-04) is present, then the other is required

N1-01 · 98 · Entity Identifier Code · Required · Identifier (ID)

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

• ST: Ship To

N1-02 · 93 · Name · Required · String (AN) · Min 1 Max 60

Free-form name

Usage notes

Entity receiving the package(s)

N1-03 · 66 · Identification Code Qualifier · Optional · Identifier (ID)

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

• 54: Warehouse

N1-04 · 67 · Identification Code · Optional · String (AN) · Min 2 Max 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

Warehouse ID

320 Heading > N1 Loop > N3

N3 Address Information

Required · Max use 2

To specify the location of the named party

N3-01 · 166 · Address Information · Required · String (AN) · Min 1 Max 55

Address information

Usage notes

Ship To address

N3-02 · 166 · Address Information · Optional · String (AN) · Min 1 Max 55

Address information

330 Heading > N1 Loop > N4

N4 Geographic Location

Required · Max use 1

To specify the geographic place of the named party

If Location Identifier (N4-06) is present, then Location Qualifier (N4-05) is required

N4-01 · 19 · City Name · Required · String (AN) · Min 2 Max 30

Free-form text for city name

• A combination of either N401 through N404, or N405 and N406 may be adequate to specify a location.

N4-02 · 156 · State or Province Code · Required · Identifier (ID) · Min 2 Max 2

Code (Standard State/Province) as defined by appropriate government agency

• N402 is required only if city name (N401) is in the U.S. or Canada.

N4-03 · 116 · Postal Code · Required · Identifier (ID) · Min 3 Max 15

Code defining international postal zone code excluding punctuation and blanks (zip code for United States)

N4-04 · 26 · Country Code · Required · Identifier (ID) · Min 2 Max 3

Code identifying the country

N4-05 · 309 · Location Qualifier · Optional · Identifier (ID)

Code identifying type of location

• ZN: Zone Code

N4-06 · 310 · Location Identifier · Optional · String (AN)

Code which identifies a specific location

• C: Commercial
• R: Residential

Detail

PO1 Loop Required Max >1

010 Detail > PO1 Loop > PO1

PO1 Baseline Item Data

Required · Max use 1

To specify basic and most frequently used line item data

• PO102 is required.

PO1-01 · 350 · Assigned Identification · Required · String (AN) · Min 1 Max 20

Alphanumeric characters assigned for differentiation within a transaction set

• PO101 is the line item identification.

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

Quantity ordered

PO1-03 · 355 · Unit or Basis for Measurement Code · Required · Identifier (ID)

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

• EA: Each

PO1-04 · 212 · Unit Price · Required · Decimal number (R) · Min 1 Max 17

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

PO1-06 · 235 · Product/Service ID Qualifier · Required · Identifier (ID)

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.

• VN: Vendor's (Seller's) Item Number

PO1-07 · 234 · Product/Service ID · Required · String (AN) · Min 1 Max 48

Identifying number for a product or service

Usage notes

PO107 must match PO107 on the 850

240 Detail > PO1 Loop > TD5

TD5 Carrier Details (Routing Sequence/Transit Time)

Optional · Max use 12

To specify the carrier and sequence of routing and provide transit time information

If Identification Code Qualifier (TD5-02) is present, then Identification Code (TD5-03) is required

TD5-02 · 66 · Identification Code Qualifier · Optional · Identifier (ID)

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

• When specifying a routing sequence to be used for the shipment movement in lieu of specifying each carrier within the movement, use TD502 to identify the party responsible for defining the routing sequence, and use TD503 to identify the actual routing sequence, specified by the party identified in TD502.

• 2: Standard Carrier Alpha Code (SCAC)

TD5-03 · 67 · Identification Code · Optional · String (AN) · Min 2 Max 80

Code identifying a party or other code

Usage notes

SCAC

TD5-04 · 91 · Transportation Method/Type Code · Optional · Identifier (ID)

Code specifying the method or type of transportation for the shipment

• ZZ: Mutually defined

TD5-05 · 387 · Routing · Optional · String (AN) · Min 1 Max 35

Free-form description of the routing or requested routing for shipment, or the originating carrier's identity

Usage notes

Ship Speed

ACK Loop Required Max >1

270 Detail > PO1 Loop > ACK Loop > ACK

ACK Line Item Acknowledgment

Required · Max use 1

To acknowledge the ordered quantities and specify the ready date for a specific line item

If either Product/Service ID Qualifier (ACK-07) or Product/Service ID (ACK-08) is present, then the other is required

ACK-01 · 668 · Line Item Status Code · Required · Identifier (ID)

Code specifying the action taken by the seller on a line item requested by the buyer

Usage notes

The codes: AC and IA have automated and/or review processes in place to address potential order concerns for our customers

• AA: Item Accepted - Order Forwarded to Alternate Supplier Location
• AC: Item Accepted and Shipped
• AD: Acknowledge – With Detail, No Change
• AR: Item Accepted and Released for Shipment
• BP: Item Accepted - Partial Shipment, Balance Backordered
• DR: Item Accepted - Date Rescheduled
• ED: Invalid Code
• IA: Item Accepted
• IB: Item Backordered
• IC: Item Accepted - Changes Made
• ID: Item Deleted
• IH: Item on Hold
• IP: Item Accepted - Price Changed
• IQ: Item Accepted - Quantity Changed
• IR: Item Rejected
• IS: Item Accepted - Substitution Made
• IU: Invalid Code
• R1: Item Rejected, Not a Contract Item
• R2: Item Rejected, Invalid Item Product Number
• R3: Item Rejected, Invalid Unit of Issue
• R4: Item Rejected, Contract Item not Available

ACK-02 · 380 · Quantity · Required · Decimal number (R) · Min 1 Max 15

Numeric value of quantity

ACK-03 · 355 · Unit or Basis for Measurement Code · Required · Identifier (ID)

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

• EA: Each

ACK-04 · 374 · Date/Time Qualifier · Required · Identifier (ID) · Min 3 Max 3

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

ACK-05 · 373 · Date · Required · Date (DT) · CCYYMMDD format

Date expressed as CCYYMMDD

ACK-07 · 235 · Product/Service ID Qualifier · Optional · Identifier (ID)

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

• DV: Location Code

ACK-08 · 234 · Product/Service ID · Optional · String (AN) · Min 1 Max 48

Identifying number for a product or service

Usage notes

Warehouse Location

ACK-09 · 235 · Product/Service ID Qualifier · Required · Identifier (ID) · Min 2 Max 2

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

Usage notes

Vendor's Order Number

ACK-10 · 234 · Product/Service ID · Required · String (AN) · Min 1 Max 48

Identifying number for a product or service

Usage notes

Order Number

Summary

CTT Loop Required Max >1

010 Summary > CTT Loop > CTT

CTT Transaction Totals

Required · Max 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.

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

Total number of line items in the transaction set

020 Summary > CTT Loop > AMT

AMT Monetary Amount

Required · Max use 1

To indicate the total monetary amount

• If AMT is used in the summary area, then AMT01 will = TT and AMT02 will indicate total transaction amount as calculated by the sender.

AMT-01 · 522 · Amount Qualifier Code · Required · Identifier (ID)

Code to qualify amount

• GV: Gross Value

AMT-02 · 782 · Monetary Amount · Required · Decimal number (R) · Min 1 Max 18

Monetary amount

030 Summary > SE

SE Transaction Set Trailer

Required · Max 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)

SE-01 · 96 · Number of Included Segments · Required · Numeric (N0) · Min 1 Max 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 4 Max 9

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

GE Functional Group Trailer

Required · Max use 1

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

GE-01 · 97 · Number of Transaction Sets Included · Required · Numeric (N0) · Min 1 Max 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 1 Max 9

Assigned number originated and maintained by the sender

IEA Interchange Control Trailer

Required · Max use 1

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

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

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

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

A control number assigned by the interchange sender

EDI Samples

Wayfair sample

ISA*00*          *00*          *ZZ*SENDER         *ZZ*RECEIVER       *231101*0203*U*00401*000000001*0*T*>
GS*PR*SENDERGS*RECEIVERGS*20231101*020305*000000001*X*004010
ST*855*0001
BAK*00*AC*PO Number*20230111
REF*VR*SuID*Warehouse ZIP
N1*ST*Ship To Name*54*Warehouse ID
N3*Ship To Addr1*Ship To Addr2
N4*Ship To City*CA*Ship To Zip*USA*ZN*C
PO1*Product Number*10*EA*100**VN*Vendor Part Number
TD5**2*SCAC*ZZ*Ship Speed
ACK*AD*10*EA*001*20230130**DV*Location*VO*Vendor Order Number
CTT*100
AMT*GV*1000
SE*12*0001
GE*1*000000001
IEA*1*000000001