Stedi maintains this guide based on public documentation from Wayfair. Contact Wayfair for official EDI specifications. To report any errors in this guide, please contact us.

X12 855 Purchase Order Acknowledgment

X12 Release 4010

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Delimiters

~ Segment
* Element
> Component

EDI sample

—

Wayfair sample

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ISA

Interchange Control Header

RequiredMax use 1

—

Example

ISA-01

I01

Authorization Information Qualifier

Required

Identifier (ID)

—

00: No Authorization Information Present (No Meaningful Information in I02)

ISA-02

I02

Authorization Information

Required

String (AN)

Min 10Max 10

—

ISA-03

I03

Security Information Qualifier

Required

Identifier (ID)

—

00: No Security Information Present (No Meaningful Information in I04)

ISA-04

I04

Security Information

Required

String (AN)

Min 10Max 10

—

ISA-05

I05

Interchange ID Qualifier

Required

Identifier (ID)

—

01: Duns (Dun & Bradstreet)

ISA-06

I06

Interchange Sender ID

Required

String (AN)

Min 15Max 15

—

ISA-07

I05

Interchange ID Qualifier

Required

Identifier (ID)

Min 2Max 2

—

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 15Max 15

—

ISA-09

I08

Interchange Date

Required

Date (DT)

YYMMDD format

—

ISA-10

I09

Interchange Time

Required

Time (TM)

HHMM format

—

ISA-11

I10

Interchange Control Standards Identifier

Required

Identifier (ID)

—

U: U.S. EDI Community of ASC X12, TDCC, and UCS

ISA-12

I11

Interchange Control Version Number

Required

Identifier (ID)

—

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

—

ISA-14

I13

Acknowledgment Requested

Required

Identifier (ID)

Min 1Max 1

—

0: No Acknowledgment Requested
1: Interchange Acknowledgment Requested

ISA-15

I14

Usage Indicator

Required

Identifier (ID)

Min 1Max 1

—

I: Information
P: Production Data
T: Test Data

ISA-16

I15

Component Element Separator

Required

String (AN)

Min 1Max 1

—

>: Component Element Separator

Functional Group Header

RequiredMax use 1

—

Example

GS-01

479

Functional Identifier Code

Required

Identifier (ID)

—

PR: Purchase Order Acknowledgement (855)

GS-02

142

Application Sender's Code

Required

String (AN)

Min 2Max 15

—

GS-03

124

Application Receiver's Code

Required

String (AN)

Min 2Max 15

—

GS-04

373

Date

Required

Date (DT)

CCYYMMDD format

—

GS-05

337

Time

Required

Time (TM)

HHMM, HHMMSS, HHMMSSD, or HHMMSSDD format

—

GS-06

Group Control Number

Required

Numeric (N0)

Min 1Max 9

—

GS-07

455

Responsible Agency Code

Required

Identifier (ID)

Min 1Max 2

—

T: Transportation Data Coordinating Committee (TDCC)
X: Accredited Standards Committee X12

GS-08

480

Version / Release / Industry Identifier Code

Required

String (AN)

—

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

Heading

010

Heading > ST

Transaction Set Header

RequiredMax use 1

—

Example

ST-01

143

Transaction Set Identifier Code

Required

Identifier (ID)

—

855: Purchase Order Acknowledgment

ST-02

329

Transaction Set Control Number

Required

Numeric (N)

Min 4Max 9

—

BAK

020

Heading > BAK

Beginning Segment for Purchase Order Acknowledgment

RequiredMax use 1

—

Example

BAK-01

353

Transaction Set Purpose Code

Required

Identifier (ID)

Min 2Max 2

—

BAK-02

587

Acknowledgment Type

Required

Identifier (ID)

Min 2Max 2

—

BAK-03

324

Purchase Order Number

Required

String (AN)

Min 1Max 22

—

BAK-04

373

Date

Required

Date (DT)

CCYYMMDD format

—

REF

050

Heading > REF

Reference Identification

RequiredMax use >1

—

Example

REF-01

128

Reference Identification Qualifier

Required

Identifier (ID)

—

VR: Vendor ID Number

REF-02

127

Reference Identification

Required

String (AN)

Min 1Max 30

—

Usage notes

—

REF-03

352

Description

Optional

String (AN)

Min 1Max 80

—

Usage notes

—

N1 Loop

RequiredMax >1

300

Heading > N1 Loop > N1

Name

RequiredMax use 1

—

Example

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

N1-01

Entity Identifier Code

Required

Identifier (ID)

—

ST: Ship To

N1-02

Name

Required

String (AN)

Min 1Max 60

—

Usage notes

—

N1-03

Identification Code Qualifier

Optional

Identifier (ID)

—

54: Warehouse

N1-04

Identification Code

Optional

String (AN)

Min 2Max 80

—

Usage notes

—

320

Heading > N1 Loop > N3

Address Information

RequiredMax use 2

—

Example

N3-01

166

Address Information

Required

String (AN)

Min 1Max 55

—

Usage notes

—

N3-02

166

Address Information

Optional

String (AN)

Min 1Max 55

—

330

Heading > N1 Loop > N4

Geographic Location

RequiredMax use 1

—

Example

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

N4-01

City Name

Required

String (AN)

Min 2Max 30

—

N4-02

156

State or Province Code

Required

Identifier (ID)

Min 2Max 2

—

N4-03

116

Postal Code

Required

Identifier (ID)

Min 3Max 15

—

N4-04

Country Code

Required

Identifier (ID)

Min 2Max 3

—

N4-05

309

Location Qualifier

Optional

Identifier (ID)

—

ZN: Zone Code

N4-06

310

Location Identifier

Optional

String (AN)

—

C: Commercial
R: Residential

N1 Loop end

Heading end

Detail

PO1 Loop

RequiredMax >1

PO1

010

Detail > PO1 Loop > PO1

Baseline Item Data

RequiredMax use 1

—

Example

PO1-01

350

Assigned Identification

Required

String (AN)

Min 1Max 20

—

PO1-02

330

Quantity Ordered

Required

Decimal number (R)

Min 1Max 15

—

PO1-03

355

Unit or Basis for Measurement Code

Required

Identifier (ID)

—

EA: Each

PO1-04

212

Unit Price

Required

Decimal number (R)

Min 1Max 17

—

PO1-06

235

Product/Service ID Qualifier

Required

Identifier (ID)

—

VN: Vendor's (Seller's) Item Number

PO1-07

234

Product/Service ID

Required

String (AN)

Min 1Max 48

—

Usage notes

—

TD5

240

Detail > PO1 Loop > TD5

Carrier Details (Routing Sequence/Transit Time)

OptionalMax use 12

—

Example

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

TD5-02

Identification Code Qualifier

Optional

Identifier (ID)

—

2: Standard Carrier Alpha Code (SCAC)

TD5-03

Identification Code

Optional

String (AN)

Min 2Max 80

—

Usage notes

—

TD5-04

Transportation Method/Type Code

Optional

Identifier (ID)

—

ZZ: Mutually defined

TD5-05

387

Routing

Optional

String (AN)

Min 1Max 35

—

Usage notes

—

ACK Loop

RequiredMax >1

ACK

270

Detail > PO1 Loop > ACK Loop > ACK

Line Item Acknowledgment

RequiredMax use 1

—

Example

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)

—

Usage notes

—

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 1Max 15

—

ACK-03

355

Unit or Basis for Measurement Code

Required

Identifier (ID)

—

EA: Each

ACK-04

374

Date/Time Qualifier

Required

Identifier (ID)

Min 3Max 3

—

ACK-05

373

Date

Required

Date (DT)

CCYYMMDD format

—

ACK-07

235

Product/Service ID Qualifier

Optional

Identifier (ID)

—

DV: Location Code

ACK-08

234

Product/Service ID

Optional

String (AN)

Min 1Max 48

—

Usage notes

—

ACK-09

235

Product/Service ID Qualifier

Required

Identifier (ID)

Min 2Max 2

—

Usage notes

—

ACK-10

234

Product/Service ID

Required

String (AN)

Min 1Max 48

—

Usage notes

—

ACK Loop end

PO1 Loop end

Detail end

Summary

CTT Loop

RequiredMax >1

CTT

010

Summary > CTT Loop > CTT

Transaction Totals

RequiredMax use 1

—

Example

CTT-01

354

Number of Line Items

Required

Numeric (N0)

Min 1Max 6

—

AMT

020

Summary > CTT Loop > AMT

Monetary Amount

RequiredMax use 1

—

Example

AMT-01

522

Amount Qualifier Code

Required

Identifier (ID)

—

GV: Gross Value

AMT-02

782

Monetary Amount

Required

Decimal number (R)

Min 1Max 18

—

CTT Loop end

030

Summary > SE

Transaction Set Trailer

RequiredMax use 1

—

Example

SE-01

Number of Included Segments

Required

Numeric (N0)

Min 1Max 10

—

SE-02

329

Transaction Set Control Number

Required

Numeric (N)

Min 4Max 9

—

Summary end

Functional Group Trailer

RequiredMax use 1

—

Example

GE-01

Number of Transaction Sets Included

Required

Numeric (N0)

Min 1Max 6

—

GE-02

Group Control Number

Required

Numeric (N0)

Min 1Max 9

—

IEA

Interchange Control Trailer

RequiredMax use 1

—

Example

IEA-01

I16

Number of Included Functional Groups

Required

Numeric (N0)

Min 1Max 5

—

IEA-02

I12

Interchange Control Number

Required

Numeric (N0)

Min 9Max 9

—

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

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