X12 855 Purchase Order Acknowledgment

X12 Release 5010

This X12 Transaction Set 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
• ^ Repetition

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 identifying 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 identifying 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) · Min 2 Max 2

Code indicating 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)
• 07: Global Location Number (GLN)
• 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: ACT, Inc. 4-Digit Code of Postsecondary Institutions.
• 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
• 38: The College Board and ACT, Inc. 6-Digit Code List of Secondary Institutions
• AM: Association Mexicana del Codigo de Producto (AMECOP) Communication ID
• NR: National Retail Merchants Association (NRMA) - Assigned
• SA: User Identification Number as assigned by the Safety and Fitness Electronic Records (SAFER) System
• SN: Standard Address Number
• ZZ: Mutually Defined

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)

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

• 08: UCC EDI Communications ID (Comm ID)

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 · I65 · Repetition Separator · Required · String (AN) · Min 1 Max 1

Type is not applicable; the repetition separator is a delimiter and not a data element; this field provides the delimiter used to separate repeated occurrences of a simple data element or a composite data structure; this value must be different than the data element separator, component element separator, and the segment terminator

• ^: Repetition Separator

ISA-12 · I11 · Interchange Control Version Number · Required · Identifier (ID)

Code specifying the version number of the interchange control segments

• 00501: Standards Approved for Publication by ASC X12 Procedures Review Board through October 2003

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 indicating sender's request for an interchange acknowledgment

• 0: No Interchange Acknowledgment Requested
• 1: Interchange Acknowledgment Requested (TA1)

ISA-15 · I14 · Interchange Usage Indicator · Required · Identifier (ID) · Min 1 Max 1

Code indicating 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 Acknowledgment (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 where CC represents the first two digits of the calendar year

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 identifying the issuer of the standard; this code is used in conjunction with Data Element 480

• 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

• 005010: Standards Approved for Publication by ASC X12 Procedures Review Board through October 2003

Heading

0100 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) is 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

0200 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)

Code identifying purpose of transaction set

• 00: Original

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

Code specifying the type of acknowledgment

Usage notes

BAK02 – We only support AC (Acknowledge with detail and change) and AD (Acknowledge with detail no change. No other codes are supported and both require that the PO1 be returned (with the correct data).

• AC: Acknowledge - With Detail and Change
• AD: Acknowledge - With Detail, No Change

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 where CC represents the first two digits of the calendar year

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

Detail

PO1 Loop Required Max >1

0100 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.

If Unit or Basis for Measurement Code (PO1-03) is present, then Quantity (PO1-02) is required

If Basis of Unit Price Code (PO1-05) is present, then Unit Price (PO1-04) is required

If either Product/Service ID Qualifier (PO1-06) or Product/Service ID (PO1-07) is present, then the other is required

PO1-02 · 380 · Quantity · Optional · Decimal number (R) · Min 1 Max 15

Numeric value of quantity

• PO102 is quantity ordered.

PO1-03 · 355 · Unit or Basis for Measurement Code · Optional · 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 · Optional · Decimal number (R) · Min 1 Max 15

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

PO1-05 · 639 · Basis of Unit Price Code · Optional · Identifier (ID)

Code identifying the type of unit price for an item

• NT: Net

PO1-06 · 235 · Product/Service ID Qualifier · Optional · 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.

• SK: Stock Keeping Unit (SKU)
• UP: UCC - 12

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

Identifying number for a product or service

0400 Detail > PO1 Loop > CTP

CTP Pricing Information

Optional · Max use >1

To specify pricing information

Usage notes

CTP segment ONLY needs to be returned if there has been a price change.

If either Quantity (CTP-04) or Composite Unit of Measure (CTP-05) is present, then the other is required

CTP-02 · 236 · Price Identifier Code · Optional · Identifier (ID)

Code identifying pricing specification

• RTL: Retail

CTP-03 · 212 · Unit Price · Optional · Decimal number (R) · Min 1 Max 15

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

• See Figures Appendix for an example detailing the use of CTP03 and CTP04.
• See Figures Appendix for an example detailing the use of CTP03, CTP04 and CTP07.

CTP-04 · 380 · Quantity · Optional · Decimal number (R) · Min 1 Max 15

Numeric value of quantity

CTP-05 · C001 · Composite Unit of Measure · Optional Max use 1 · To identify a composite unit of measure (See Figures Appendix for examples of use)

C001-01 · 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 Loop Required Max >1

2700 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 Quantity (ACK-02) or Unit or Basis for Measurement Code (ACK-03) is present, then the other is required

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

If Date/Time Qualifier (ACK-04) is present, then Date (ACK-05) 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

A minimum of the ACK01 must be returned with the appropriate code.

• IA: Item Accepted
• IB: Item Backordered
• IC: Item Accepted - Changes Made
• IP: Item Accepted - Price Changed
• IQ: Item Accepted - Quantity Changed
• IR: Item Rejected
• IS: Item Accepted - Substitution Made

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

Numeric value of quantity

Usage notes

ACK02 – only needs to be returned if the order quantity is being changed.

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

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

Usage notes

ACK04 and ACK05 only need to be returned if you are changing the ship date

• 068: Current Schedule Ship

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

Date expressed as CCYYMMDD where CC represents the first two digits of the calendar year

Usage notes

ACK04 and ACK05 only need to be returned if you are changing the ship date

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)

Usage notes

ACK07 and ACK08 only need to be returned if you are substituting an item (and only if you have the buyer’s approval).

• SK: Stock Keeping Unit (SKU)
• UP: UCC - 12

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

Identifying number for a product or service

Usage notes

ACK07 and ACK08 only need to be returned if you are substituting an item (and only if you have the buyer’s approval).

2800 Detail > PO1 Loop > ACK Loop > DTM

DTM Date/Time Reference

Optional · Max use 1

To specify pertinent dates and times

Usage notes

DTM segment only needs to be returned if you are changing the delivery date.

DTM-01 · 374 · Date/Time Qualifier · Required · Identifier (ID)

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

• 067: Current Schedule Delivery

DTM-02 · 373 · Date · Required · Date (DT) · CCYYMMDD format

Date expressed as CCYYMMDD where CC represents the first two digits of the calendar year

Summary

CTT Loop Optional Max >1

0100 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

0300 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

Sample 855

ISA*00*          *00*          *ZZ*SENDER         *ZZ*RECEIVER       *231031*0050*^*00501*000000001*0*T*>
GS*PR*SENDERGS*RECEIVERGS*20231031*005030*000000001*X*005010
ST*855*41050001
BAK*00*AD*0999999*20230323
PO1**35*EA*53.00**UP*111111111111
CTP**RTL*118.00*35*EA
ACK*IA*35*EA
PO1**35*EA*53.00**UP*111111111112
CTP**RTL*118.00*35*EA
ACK*IA*35*EA
PO1**45*EA*53.00**UP*111111111113
CTP**RTL*118.00*45*EA
ACK*IA*45*EA
PO1**45*EA*53.00**UP*111111111114
CTP**RTL*118.00*45*EA
ACK*IA*45*EA
PO1**45*EA*53.00**UP*111111111115
CTP**RTL*118.00*45*EA
ACK*IA*45*EA
PO1**35*EA*53.00**UP*111111111116
CTP**RTL*118.00*35*EA
ACK*IA*35*EA
CTT*6
SE*22*41050001
GE*1*000000001
IEA*1*000000001