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Purchase Order Acknowledgment
  • Specification
  • EDI Inspector
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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
EDI samples
  • None included
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Overview
ISA
-
Interchange Control Header
Max use 1
Required
GS
-
Functional Group Header
Max use 1
Required
heading
detail
PO1 Loop
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
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 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
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 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
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 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
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 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

Required
Date (DT)
CCYYMMDD format

Date expressed as CCYYMMDD

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 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
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

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
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 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

Example
BAK-01
353
Transaction Set Purpose Code
Required
Identifier (ID)

Code identifying purpose of transaction set

00
Original
07
Duplicate
BAK-02
587
Acknowledgment Type
Required
Identifier (ID)

Code specifying the type of acknowledgment

AC
Acknowledge - With Detail and Change
AH
Acknowledge - Hold Status
AT
Accepted
RJ
Rejected - No Detail
BAK-03
324
Purchase Order Number
Required
String (AN)
Min 1Max 22

Identifying number for Purchase Order assigned by the orderer/purchaser

Usage notes

Purchase Order Number.

Required
Date (DT)
CCYYMMDD format

Date expressed as CCYYMMDD

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

Purchase Order Date.

Optional
Date (DT)
CCYYMMDD format

Date expressed as CCYYMMDD

  • BAK09 is the date assigned by the sender to the acknowledgment.
Usage notes

PO Acknowledgement Date.

Heading end

Detail

PO1 Loop
OptionalMax >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

This segment may be included if the Acknowledgment Type (BAK02) is AC.

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

Alphanumeric characters assigned for differentiation within a transaction set

  • PO101 is the line item identification.
Usage notes

PO item number.

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)

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

Usage notes

Order Quantity Unit of Measure.

03
Seconds
BD
Bundle
BF
Board Feet
BG
Bag
BM
Bolt
BO
Bottle
BR
Barrel
CA
Case
CF
Cubic Feet
CG
Card
CI
Cubic Inches
CL
Cylinder
CM
Centimeter
CN
Can
CT
Carton
CX
Coil
CY
Cubic Yard
DA
Days
DF
Dram
DH
Miles
DR
Drum
DZ
Dozen
EA
Each
FT
Foot
GA
Gallon
GR
Gram
GS
Gross
HA
Hank
HR
Hours
HU
Hundred
HV
Hundred Weight (Short)
IN
Inch
JA
Job
JR
Jar
KG
Kilogram
KT
Kit
LB
Pound
LF
Linear Foot
LN
Length
LO
Lot
LT
Liter
LY
Linear Yard
MJ
Minutes
ML
Milliliter
MM
Millimeter
OZ
Ounce - Av
PA
Pail
PC
Piece
PD
Pad
PK
Package
PR
Pair
PT
Pint
QT
Quart
RL
Roll
RM
Ream
SC
Square Centimeter
SF
Square Foot
SH
Sheet
SI
Square Inch
SJ
Sack
SM
Square Meter
SO
Spool
SQ
Square
ST
Set
SY
Square Yard
TB
Tube
TG
Gross Ton
TH
Thousand
TO
Troy Ounce
TQ
Thousand Feet
UN
Unit
VI
Vial
ZP
Page
ZZ
Mutually Defined
PO1-04
212
Unit Price
Required
Decimal number (R)
Min 1Max 15

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

Usage notes

Item Unit Price.

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.
BP
Buyer's Part Number
PO1-07
234
Product/Service ID
Required
String (AN)
Min 1Max 48

Identifying number for a product or service

Usage notes

Part Number.

CTP
040
Detail > PO1 Loop > CTP

Pricing Information

OptionalMax use >1

To specify pricing information

Usage notes

• CTP should only be used when the Acknowledgment Type (BAK02) is "AC" and must be used to convey any price changes.
• The CTP segment is used in conjunction with an ACK01 segment "Line Item Status Code" (IP) for Price Change.

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

Code identifying pricing specification

CON
Contract Price
INV
Invoice Billing Price
MAX
Maximum Order Quantity Price
CTP-03
212
Unit Price
Optional
Decimal number (R)
Min 1Max 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.
Usage notes

Item Unit Price.

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

Numeric value of quantity

CTP-05
C001
Composite Unit of Measure
OptionalMax 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

Usage notes

Ordered Quantity Unit of Measure.

03
Seconds
BD
Bundle
BF
Board Feet
BG
Bag
BM
Bolt
BO
Bottle
BR
Barrel
CA
Case
CF
Cubic Feet
CG
Card
CI
Cubic Inches
CL
Cylinder
CM
Centimeter
CN
Can
CT
Carton
CX
Coil
CY
Cubic Yard
DA
Days
DF
Dram
DH
Miles
DR
Drum
DZ
Dozen
EA
Each
FT
Foot
GA
Gallon
GR
Gram
GS
Gross
HA
Hank
HR
Hours
HU
Hundred
HV
Hundred Weight (Short)
IN
Inch
JA
Job
JR
Jar
KG
Kilogram
KT
Kit
LB
Pound
LF
Linear Foot
LN
Length
LO
Lot
LT
Liter
LY
Linear Yard
MJ
Minutes
ML
Milliliter
MM
Millimeter
OZ
Ounce - Av
PA
Pail
PC
Piece
PD
Pad
PK
Package
PR
Pair
PT
Pint
QT
Quart
RL
Roll
RM
Ream
SC
Square Centimeter
SF
Square Foot
SH
Sheet
SI
Square Inch
SJ
Sack
SM
Square Meter
SO
Spool
SQ
Square
ST
Set
SY
Square Yard
TB
Tube
TG
Gross Ton
TH
Thousand
TO
Troy Ounce
TQ
Thousand Feet
UN
Unit
VI
Vial
ZP
Page
ZZ
Mutually Defined
ACK Loop
OptionalMax >1
ACK
270
Detail > PO1 Loop > ACK Loop > ACK

Line Item Acknowledgment

RequiredMax use 1

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

Usage notes

ACK segment should only be used when the Acknowledgment Type (BAK02) is assigned a value of 'AC' and it should only be used for the following reasons.

  • Date Reschedule
  • Price Changed
  • Quantity Changed
  • Item Rejection
Example
If either Quantity (ACK-02) or Unit or Basis for Measurement Code (ACK-03) 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

DR
Item Accepted - Date Rescheduled
IA
Item Accepted
IP
Item Accepted - Price Changed
IQ
Item Accepted - Quantity Changed
IR
Item Rejected
ACK-02
380
Quantity
Optional
Decimal number (R)
Min 1Max 15

Numeric value of quantity

Usage notes

Ordered Quantity.

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

Usage notes

Ordered Quantity Unit of Measure.

03
Seconds
BD
Bundle
BF
Board Feet
BG
Bag
BM
Bolt
BO
Bottle
BR
Barrel
CA
Case
CF
Cubic Feet
CG
Card
CI
Cubic Inches
CL
Cylinder
CM
Centimeter
CN
Can
CT
Carton
CX
Coil
CY
Cubic Yard
DA
Days
DF
Dram
DH
Miles
DR
Drum
DZ
Dozen
EA
Each
FT
Foot
GA
Gallon
GR
Gram
GS
Gross
HA
Hank
HR
Hours
HU
Hundred
HV
Hundred Weight (Short)
IN
Inch
JA
Job
JR
Jar
KG
Kilogram
KT
Kit
LB
Pound
LF
Linear Foot
LN
Length
LO
Lot
LT
Liter
LY
Linear Yard
MJ
Minutes
ML
Milliliter
MM
Millimeter
OZ
Ounce - Av
PA
Pail
PC
Piece
PD
Pad
PK
Package
PR
Pair
PT
Pint
QT
Quart
RL
Roll
RM
Ream
SC
Square Centimeter
SF
Square Foot
SH
Sheet
SI
Square Inch
SJ
Sack
SM
Square Meter
SO
Spool
SQ
Square
ST
Set
SY
Square Yard
TB
Tube
TG
Gross Ton
TH
Thousand
TO
Troy Ounce
TQ
Thousand Feet
UN
Unit
VI
Vial
ZP
Page
ZZ
Mutually Defined
ACK-04
374
Date/Time Qualifier
Optional
Identifier (ID)

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

038
Ship No Later
083
Scheduled for Shipment (Prior to and Including)
Optional
Date (DT)
CCYYMMDD format

Date expressed as CCYYMMDD

ACK Loop end
SCH Loop
OptionalMax >1
SCH
310
Detail > PO1 Loop > SCH Loop > SCH

Line Item Schedule

RequiredMax use 1

To specify the data for scheduling a specific line-item

  • The SCH segment is used to specify various quantities of items ordered that are to be scheduled. When this segment is used the unit of measurement code (SCH02) should always be identical to the unit of measurement code in the associated PO1 segment (PO103) and the sum of values of quantity (SCH01) should always equal the quantity ordered (PO102) in the PO1 segment.
Usage notes

SCH is used to display original Schedule Dates which are located on the original Purchase Order (850).

Example
SCH-01
380
Quantity
Required
Decimal number (R)
Min 1Max 15

Numeric value of quantity

Usage notes

Schedule Quantity.

SCH-02
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

Usage notes

Line Item Unit of Measure.

03
Seconds
BD
Bundle
BF
Board Feet
BG
Bag
BM
Bolt
BO
Bottle
BR
Barrel
CA
Case
CF
Cubic Feet
CG
Card
CI
Cubic Inches
CL
Cylinder
CM
Centimeter
CN
Can
CT
Carton
CX
Coil
CY
Cubic Yard
DA
Days
DF
Dram
DH
Miles
DR
Drum
DZ
Dozen
EA
Each
FT
Foot
GA
Gallon
GR
Gram
GS
Gross
HA
Hank
HR
Hours
HU
Hundred
HV
Hundred Weight (Short)
IN
Inch
JA
Job
JR
Jar
KG
Kilogram
KT
Kit
LB
Pound
LF
Linear Foot
LN
Length
LO
Lot
LT
Liter
LY
Linear Yard
MJ
Minutes
ML
Milliliter
MM
Millimeter
OZ
Ounce - Av
PA
Pail
PC
Piece
PD
Pad
PK
Package
PR
Pair
PT
Pint
QT
Quart
RL
Roll
RM
Ream
SC
Square Centimeter
SF
Square Foot
SH
Sheet
SI
Square Inch
SJ
Sack
SM
Square Meter
SO
Spool
SQ
Square
ST
Set
SY
Square Yard
TB
Tube
TG
Gross Ton
TH
Thousand
TO
Troy Ounce
TQ
Thousand Feet
UN
Unit
VI
Vial
ZP
Page
ZZ
Mutually Defined
SCH-05
374
Date/Time Qualifier
Required
Identifier (ID)

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

  • SCH05 specifies the interpretation to be used for SCH06 and SCH07.
038
Ship No Later
Required
Date (DT)
CCYYMMDD format

Date expressed as CCYYMMDD

SCH Loop end
PO1 Loop end
Detail end

Summary

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

Total number of line items in the transaction set

CTT-02
347
Hash Total
Optional
Decimal number (R)
Min 1Max 10

Sum of values of the specified data element. All values in the data element will be summed without regard to decimal points (explicit or implicit) or signs. Truncation will occur on the left most digits if the sum is greater than the maximum size of the hash total of the data element.

## Example:
-.0018 First occurrence of value being hashed.
.18 Second occurrence of value being hashed.
1.8 Third occurrence of value being hashed.
18.01 Fourth occurrence of value being hashed.

1855 Hash total prior to truncation.
855 Hash total after truncation to three-digit field.

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

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