X12 Release 5010
Delimiters: ~ Segment * Element > Component
Certified July 22, 2024
Walmart
X12 855 Purchase Order Acknowledgment
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.
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
ISA01
I01
Authorization Information Qualifier
Required
ID
Min 2 Max 2
Code identifying the type of information in the Authorization Information
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA02
I02
Authorization Information
Required
alphanumeric (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)
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA03
I03
Security Information Qualifier
Required
ID
Min 2 Max 2
Code identifying the type of information in the Security Information
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA04
I04
Security Information
Required
alphanumeric (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)
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA05
I05
Interchange ID Qualifier
Required
ID
Min 2 Max 2
Code indicating the system/method of code structure used to designate the sender or receiver ID element being qualified
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA06
I06
Interchange Sender ID
Required
alphanumeric (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
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA07
I05
Interchange ID Qualifier
Required
ID
Min 2 Max 2
Code indicating the system/method of code structure used to designate the sender or receiver ID element being qualified
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA08
I07
Interchange Receiver ID
Required
alphanumeric (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
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA09
I08
Interchange Date
Required
date (DT)
Min 6 Max 6
Date of the interchange
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA10
I09
Interchange Time
Required
time (TM)
Min 4 Max 4
Time of the interchange
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA11
I65
Repetition Separator
Required
undefined ()
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
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA12
I11
Interchange Control Version Number
Required
ID
Min 5 Max 5
Code specifying the version number of the interchange control segments
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA13
I12
Interchange Control Number
Required
numeric (N0)
Min 9 Max 9
A control number assigned by the interchange sender
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA14
I13
Acknowledgment Requested
Required
ID
Min 1 Max 1
Code indicating sender's request for an interchange acknowledgment
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA15
I14
Interchange Usage Indicator
Required
ID
Min 1 Max 1
Code indicating whether data enclosed by this interchange envelope is test, production or information
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ISA16
I15
Component Element Separator
Required
undefined ()
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
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
GS
Functional Group Header
Required
Max Use 1
To indicate the beginning of a functional group and to provide control information
GS01
479
Functional Identifier Code
Required
ID
Min 2 Max 2
Code identifying a group of application related transaction sets
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
GS02
142
Application Sender's Code
Required
alphanumeric (AN)
Min 2 Max 15
Code identifying party sending transmission; codes agreed to by trading partners
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
GS03
124
Application Receiver's Code
Required
alphanumeric (AN)
Min 2 Max 15
Code identifying party receiving transmission; codes agreed to by trading partners
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
GS04
373
Date
Required
longDate (DT)
Min 8 Max 8
Date expressed as CCYYMMDD where CC represents the first two digits of the calendar year
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
GS05
337
Time
Required
time (TM)
Min 4 Max 8
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)
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
GS06
28
Group Control Number
Required
numeric (N0)
Min 1 Max 9
Assigned number originated and maintained by the sender
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
GS07
455
Responsible Agency Code
Required
ID
Min 1 Max 2
Code identifying the issuer of the standard; this code is used in conjunction with Data Element 480
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
GS08
480
Version / Release / Industry Identifier Code
Required
alphanumeric (AN)
Min 1 Max 12
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
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ST
Transaction Set Header
Required
Max Use 1
To indicate the start of a transaction set and to assign a control number
ST01
143
Transaction Set Identifier Code
Required
ID
Min 3 Max 3
Code uniquely identifying a Transaction Set
855
Purchase Order Acknowledgment
ST02
329
Transaction Set Control Number
Required
alphanumeric (AN)
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
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
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
BAK01
353
Transaction Set Purpose Code
Required
ID
Min 2 Max 2
Code identifying purpose of transaction set
00
Original
19
Seller initiated change
BAK02
587
Acknowledgment Type
Required
ID
Min 2 Max 2
Code specifying the type of acknowledgment
AC
Acknowledge - With Detail and Change
AD
Acknowledge - With Detail, No Change
BAK03
324
Purchase Order Number
Required
alphanumeric (AN)
Min 1 Max 22
Identifying number for Purchase Order assigned by the orderer/purchaser
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
BAK04
373
Date
Required
longDate (DT)
Min 8 Max 8
Date expressed as CCYYMMDD where CC represents the first two digits of the calendar year
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
BAK09
373
Date
Required
longDate (DT)
Min 8 Max 8
Date expressed as CCYYMMDD where CC represents the first two digits of the calendar year
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
REF
Reference Information
Required
To specify identifying information
Syntax Notes
At least one of REF02 or REF03 is required.
REF01
128
Reference Identification Qualifier
Required
ID
Min 2 Max 3
Code qualifying the Reference Identification
DP
Department Number
MR
Merchandise Type Code
IA
Internal Vendor Number
CO
Customer Order Number
AN
Associated Purchase Orders
REF02
127
Reference Identification
Required
alphanumeric (AN)
Min 1 Max 50
Reference information as defined for a particular Transaction Set or as specified by the Reference Identification Qualifier
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
N9 loop
Min Items
Max Loop 1000
N9
Extended Reference Information
Required
Max Use 1
To transmit identifying information as specified by the Reference Identification Qualifier
Syntax Notes
At least one of N902 or N903 is required.
If N906 is present, then and N905 is required.
N901
128
Reference Identification Qualifier
Required
ID
Min 2 Max 3
Code qualifying the Reference Identification
ZZ
Mutually Defined
4U
Market Area
N902
127
Reference Identification
Required
alphanumeric (AN)
Min 1 Max 50
Reference information as defined for a particular Transaction Set or as specified by the Reference Identification Qualifier
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
N903
369
Free-form Description
Optional
alphanumeric (AN)
Min 1 Max 45
Free-form descriptive text
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
N1 loop
Required
Min Items
Max Loop 200
N1
Party Identification
Required
Max Use 1
To identify a party by type of organization, name, and code
Syntax Notes
At least one of N102 or N103 is required.
If any of N103 or N104 are present, then all are required.
N101
98
Entity Identifier Code
Required
ID
Min 2 Max 3
Code identifying an organizational entity, a physical location, property or an individual
BY
Buying Party (Purchaser)
N102
93
Name
Optional
alphanumeric (AN)
Min 1 Max 60
Free-form name
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
N103
66
Identification Code Qualifier
Optional
ID
Min 1 Max 2
Code designating the system/method of code structure used for Identification Code (67)
UL
Global Location Number (GLN)
N104
67
Identification Code
Optional
alphanumeric (AN)
Min 2 Max 80
Code identifying a party or other code
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
N1
Party Identification
Required
Max Use 1
To identify a party by type of organization, name, and code
Syntax Notes
At least one of N102 or N103 is required.
If any of N103 or N104 are present, then all are required.
N101
98
Entity Identifier Code
Required
ID
Min 2 Max 3
Code identifying an organizational entity, a physical location, property or an individual
SU
Supplier/Manufacturer
N102
93
Name
Required
alphanumeric (AN)
Min 1 Max 60
Free-form name
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
N103
66
Identification Code Qualifier
Optional
Min 1 Max 1
Code designating the system/method of code structure used for Identification Code (67)
N104
67
Identification Code
Optional
Min 1 Max 1
Code identifying a party or other code
PO1 loop
Required
Min Items
Max Loop 100000
PO1
Baseline Item Data
Required
Max Use 1
To specify basic and most frequently used line item data
Syntax Notes
If PO103 is present, then and PO102 is required.
If PO105 is present, then and PO104 is required.
If any of PO106 or PO107 are present, then all are required.
If any of PO108 or PO109 are present, then all are required.
If any of PO110 or PO111 are present, then all are required.
If any of PO112 or PO113 are present, then all are required.
If any of PO114 or PO115 are present, then all are required.
If any of PO116 or PO117 are present, then all are required.
If any of PO118 or PO119 are present, then all are required.
If any of PO120 or PO121 are present, then all are required.
If any of PO122 or PO123 are present, then all are required.
If any of PO124 or PO125 are present, then all are required.
PO101
350
Assigned Identification
Optional
alphanumeric (AN)
Min 1 Max 20
Alphanumeric characters assigned for differentiation within a transaction set
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
PO102
380
Quantity
Required
decimal (R)
Min 1 Max 15
Numeric value of quantity
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
PO103
355
Unit or Basis for Measurement Code
Optional
ID
Min 2 Max 2
Code specifying the units in which a value is being expressed, or manner in which a measurement has been taken
EA
Each
PO106
235
Product/Service ID Qualifier
Required
ID
Min 2 Max 2
Code identifying the type/source of the descriptive number used in Product/Service ID (234)
IN
Buyer's Item Number
PO107
234
Product/Service ID
Required
alphanumeric (AN)
Min 1 Max 48
Identifying number for a product or service
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
PO108
235
Product/Service ID Qualifier
Optional
ID
Min 2 Max 2
Code identifying the type/source of the descriptive number used in Product/Service ID (234)
UP
UCC - 12
PO109
234
Product/Service ID
Optional
alphanumeric (AN)
Min 1 Max 48
Identifying number for a product or service
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
PO110
235
Product/Service ID Qualifier
Optional
ID
Min 2 Max 2
Code identifying the type/source of the descriptive number used in Product/Service ID (234)
VN
Vendor's (Seller's) Item Number
PO111
234
Product/Service ID
Optional
alphanumeric (AN)
Min 1 Max 48
Identifying number for a product or service
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ACK loop
Required
Max Loop 104
ACK
98
Line Item Acknowledgment
Required
Min 1 Max 1
Max Use 1
To acknowledge the ordered quantities and specify the ready date for a specific line item
Syntax Notes
If any of ACK02 or ACK03 are present, then all are required.
If ACK04 is present, then and ACK05 is required.
If any of ACK07 or ACK08 are present, then all are required.
If any of ACK09 or ACK10 are present, then all are required.
If any of ACK11 or ACK12 are present, then all are required.
If any of ACK13 or ACK14 are present, then all are required.
If any of ACK15 or ACK16 are present, then all are required.
If any of ACK17 or ACK18 are present, then all are required.
If any of ACK19 or ACK20 are present, then all are required.
If any of ACK21 or ACK22 are present, then all are required.
If any of ACK23 or ACK24 are present, then all are required.
If any of ACK25 or ACK26 are present, then all are required.
If any of ACK27 or ACK28 are present, then all are required.
If ACK28 is present, then ACK27 and ACK29 is required.
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ACK01
668
Line Item Status Code
Required
ID
Min 2 Max 2
Code specifying the action taken by the seller on a line item requested by the buyer
IA
Item Accepted
IQ
Item Accepted - Quantity Changed
IR
Item Rejected
ACK02
380
Quantity
Required
decimal (R)
Min 1 Max 15
Numeric value of quantity
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
ACK03
355
Unit or Basis for Measurement Code
Required
ID
Min 2 Max 2
Code specifying the units in which a value is being expressed, or manner in which a measurement has been taken
EA
Each
DTM
98
Date/Time Reference
Optional
Min 1 Max 1
Max Use 1
To specify pertinent dates and times
Syntax Notes
At least one of DTM02, DTM03 or DTM05 is required.
If DTM04 is present, then and DTM03 is required.
If any of DTM05 or DTM06 are present, then all are required.
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
DTM01
374
Date/Time Qualifier
Optional
ID
Min 3 Max 3
Code specifying type of date or time, or both date and time
068
Current Schedule Ship
DTM02
373
Date
Optional
longDate (DT)
Min 8 Max 8
Date expressed as CCYYMMDD where CC represents the first two digits of the calendar year
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
N9 loop
Optional
Max Loop 1000
N9
98
Extended Reference Information
Required
Min 1 Max 1
Max Use 1
To transmit identifying information as specified by the Reference Identification Qualifier
Syntax Notes
At least one of N902 or N903 is required.
If N906 is present, then and N905 is required.
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
N901
128
Reference Identification Qualifier
Required
ID
Min 2 Max 3
Code qualifying the Reference Identification
TD
Reason for Change
N902
127
Reference Identification
Required
alphanumeric (AN)
Min 1 Max 50
Reference information as defined for a particular Transaction Set or as specified by the Reference Identification Qualifier
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
N903
369
Free-form Description
Required
alphanumeric (AN)
Min 1 Max 45
Free-form descriptive text
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
DTM
98
Date/Time Reference
Optional
Min 1 Max 1
Max Use 1
To specify pertinent dates and times
Syntax Notes
At least one of DTM02, DTM03 or DTM05 is required.
If DTM04 is present, then and DTM03 is required.
If any of DTM05 or DTM06 are present, then all are required.
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
DTM01
374
Date/Time Qualifier
Optional
ID
Min 3 Max 3
Code specifying type of date or time, or both date and time
068
Current Schedule Ship
DTM02
373
Date
Optional
longDate (DT)
Min 8 Max 8
Date expressed as CCYYMMDD where CC represents the first two digits of the calendar year
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
CTT loop
Min Items
Max Loop 1
CTT
Transaction Totals
Required
Max Use 1
To transmit a hash total for a specific element in the transaction set
Syntax Notes
If any of CTT03 or CTT04 are present, then all are required.
If any of CTT05 or CTT06 are present, then all are required.
CTT01
354
Number of Line Items
Required
numeric (N0)
Min 1 Max 6
Total number of line items in the transaction set
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
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)
SE01
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
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here
SE02
329
Transaction Set Control Number
Required
alphanumeric (AN)
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
123
Description Goes Here
123
Description Goes Here
123
Description Goes Here