American Association of Railroads (AAR)
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Application Advice
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X12 824 Application Advice

X12 Release 8010

This X12 Transaction Set contains the format and establishes the data contents of the Application Advice Transaction Set (824) for use within the context of an Electronic Data Interchange (EDI) environment. The transaction set can be used to provide the ability to report the results of an application system's data content edits. The results of editing transaction sets can be reported at the functional group, an entire transaction set, or any portion of a transaction set, in either coded or free-form format. It is designed to accomodate the business need of reporting the acceptance, rejection, acceptance with change, or partial acceptance or rejection of any transaction set. The Application Advice should not be used in place of a transaction set designed as a specific response to another transaction set (e.g., purchase order acknowledgment sent in response to a purchase order).

Delimiters
  • ~ Segment
  • * Element
  • > Component
  • ^ Repetition
EDI samples
  • Sample 1 (TA - Acceptance)
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Overview
ISA
-
Interchange Control Header
Max use 1
Required
GS
-
Functional Group Header
Max use 1
Required
heading
detail
OTI Loop Transaction Set Accept
SE
0900
Transaction Set Trailer
Max use 1
Required
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 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 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 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 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

Code indicating 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

Code indicating 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
I65
Repetition Separator
Required
String (AN)
Min 1Max 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 Code
Required
Identifier (ID)

Code specifying the version number of the interchange control segments, the version of the data elements within the control segments, and the code values within those data elements.

00801
00801 Standards Approved for Publication by ASC X12 Procedures Review Board through December 2019
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 Code
Required
Identifier (ID)
Min 1Max 1

Code indicating sender's request for an interchange acknowledgment

0
No Interchange Acknowledgment Requested
1
Interchange Acknowledgment Requested (TA1)
2
Interchange Acknowledgment Requested only when Interchange is "Rejected Because Of Errors"
3
Interchange Acknowledgment Requested only when Interchange is "Rejected Because Of Errors" or "Accepted but Errors are Noted"
ISA-15
I14
Interchange Usage Indicator Code
Required
Identifier (ID)
Min 1Max 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 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

AG
Application Advice (824)
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

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 1Max 9

Assigned number originated and maintained by the sender

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

008010
008010 Standards Approved for Publication by ASC X12 Procedures Review Board through December 2019

Heading

ST
0100
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 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).
824
Application Advice
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

BGN
0200
Heading > BGN

Beginning Segment

RequiredMax use 1

To indicate the beginning of a transaction set

Example
BGN-01
353
Transaction Set Purpose Code
Required
Identifier (ID)
Min 2Max 2

Code identifying purpose of transaction set

BGN-02
127
Reference Identification
Required
String (AN)
Min 1Max 80

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

  • BGN02 is the transaction set reference number.
BGN-03
373
Date
Required
Date (DT)
CCYYMMDD format

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

  • BGN03 is the transaction set date.
BGN-04
337
Time
Optional
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)

  • BGN04 is the transaction set time.
Heading end

Detail

OTI Loop Transaction Set Accept
RequiredMax >1
Variants (one may be used)
OTI Loop Transaction Set Reject
OTI
0100
Detail > OTI Loop Transaction Set Accept > OTI

Original Transaction Identification

RequiredMax use 1

To identify the edited transaction set and the level at which the results of the edit are reported, and to indicate the accepted, rejected, or accepted-with-change edit result

  • The OTI loop is intended to provide a unique identification of the transaction set or portion thereof, that is the subject of this application acknowledgment.
Example
If Transaction Set Control Number (OTI-09) is present, then Group Control Number (OTI-08) is required
OTI-01
110
Application Acknowledgment Code
Required
Identifier (ID)

Code indicating the application system edit results of the business data

TA
Transaction Set Accept
OTI-02
128
Reference Identification Qualifier
Required
Identifier (ID)
Min 2Max 3

Code identifying the Reference Identification

  • OTI02 contains the qualifier identifying the business transaction from the original business application, and OTI03 will contain the original business application identification.
OTI-03
127
Reference Identification
Required
String (AN)
Min 1Max 80

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

  • OTI03 is the primary reference identification or number used to uniquely identify the original transaction set.
OTI-06
373
Date
Optional
Date (DT)
CCYYMMDD format

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

  • OTI06 is the group date.
OTI-07
337
Time
Optional
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)

  • OTI07 is the group time.
OTI-08
28
Group Control Number
Optional
Numeric (N0)
Min 1Max 9

Assigned number originated and maintained by the sender

OTI-09
329
Transaction Set Control Number
Optional
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

  • If used, OTI09 through OTI10 will contain values from the original electronic transaction set generated by the sender.
REF
0200
Detail > OTI Loop Transaction Set Accept > REF

Reference Information Interchange Train Identification

RequiredMax use >1

To specify identifying information

  • The REF segment allows for the provision of secondary reference identification or numbers required to uniquely identify the original transaction set or portion thereof. The primary reference identification or number should be provided in elements OTI02-03.
Usage notes

Occurs one (1) time for Train ID

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

Code identifying the Reference Identification

7W
Interchange Train Identification
REF-02
127
Reference Identification
Required
String (AN)
Min 1Max 80

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

Usage notes

Tenant train id

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

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

Usage notes

Host train id

REF
0200
Detail > OTI Loop Transaction Set Accept > REF

Reference Information Section Number

RequiredMax use 1

To specify identifying information

  • The REF segment allows for the provision of secondary reference identification or numbers required to uniquely identify the original transaction set or portion thereof. The primary reference identification or number should be provided in elements OTI02-03.
Usage notes

Occurs one (1) time for Train ID

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

Code identifying the Reference Identification

UQ
Section Number
REF-02
127
Reference Identification
Required
String (AN)
Min 1Max 80

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

Usage notes

Host section number.

Host section number.

If Host does not use section number
default value to “1”.

DTM
0300
Detail > OTI Loop Transaction Set Accept > DTM

Date/Time Reference

RequiredMax use 1

To specify pertinent dates and times

  • The DTM segment allows for the provision of date, time, or date and time information required to uniquely identify the original transaction set or portion thereof.
Example
DTM-01
374
Date/Time Qualifier
Required
Identifier (ID)

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

HTD
Host Departure Date
DTM-02
373
Date
Required
Date (DT)
CCYYMMDD format

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

DTM
0300
Detail > OTI Loop Transaction Set Accept > DTM

Date/Time Reference Tenant Train Departure

RequiredMax use >1

To specify pertinent dates and times

  • The DTM segment allows for the provision of date, time, or date and time information required to uniquely identify the original transaction set or portion thereof.
Example
Variants (all may be used)
DTMDate/Time Reference
DTM-01
374
Date/Time Qualifier
Required
Identifier (ID)

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

TTD
Tenant Train Departure
DTM-02
373
Date
Required
Date (DT)
CCYYMMDD format

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

DTM-03
337
Time
Optional
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)

OTI Loop Transaction Set Accept end
OTI Loop Transaction Set Reject
RequiredMax 1
Variants (one may be used)
OTI Loop Transaction Set Accept
OTI
0100
Detail > OTI Loop Transaction Set Reject > OTI

Original Transaction Identification

RequiredMax use 1

To identify the edited transaction set and the level at which the results of the edit are reported, and to indicate the accepted, rejected, or accepted-with-change edit result

  • The OTI loop is intended to provide a unique identification of the transaction set or portion thereof, that is the subject of this application acknowledgment.
Example
If Transaction Set Control Number (OTI-09) is present, then Group Control Number (OTI-08) is required
OTI-01
110
Application Acknowledgment Code
Required
Identifier (ID)

Code indicating the application system edit results of the business data

TR
Transaction Set Reject
OTI-02
128
Reference Identification Qualifier
Required
Identifier (ID)

Code identifying the Reference Identification

  • OTI02 contains the qualifier identifying the business transaction from the original business application, and OTI03 will contain the original business application identification.
SPL
Standard Point Location Code (SPLC)
OTI-03
127
Reference Identification
Required
String (AN)
Min 1Max 80

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

  • OTI03 is the primary reference identification or number used to uniquely identify the original transaction set.
OTI-06
373
Date
Optional
Date (DT)
CCYYMMDD format

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

  • OTI06 is the group date.
OTI-07
337
Time
Optional
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)

  • OTI07 is the group time.
OTI-08
28
Group Control Number
Optional
Numeric (N0)
Min 1Max 9

Assigned number originated and maintained by the sender

OTI-09
329
Transaction Set Control Number
Optional
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

  • If used, OTI09 through OTI10 will contain values from the original electronic transaction set generated by the sender.
REF
0200
Detail > OTI Loop Transaction Set Reject > REF

Reference Information Interchange Train Identification

RequiredMax use >1

To specify identifying information

  • The REF segment allows for the provision of secondary reference identification or numbers required to uniquely identify the original transaction set or portion thereof. The primary reference identification or number should be provided in elements OTI02-03.
Usage notes

Occurs one (1) time for Train ID

Example
Variants (all may be used)
REFReference Information Section Number
REF-01
128
Reference Identification Qualifier
Required
Identifier (ID)

Code identifying the Reference Identification

7W
Interchange Train Identification
REF-02
127
Reference Identification
Required
String (AN)
Min 1Max 80

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

Usage notes

Tenant train id

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

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

Usage notes

Host train id

REF
0200
Detail > OTI Loop Transaction Set Reject > REF

Reference Information Section Number

RequiredMax use 1

To specify identifying information

  • The REF segment allows for the provision of secondary reference identification or numbers required to uniquely identify the original transaction set or portion thereof. The primary reference identification or number should be provided in elements OTI02-03.
Usage notes

Occurs one (1) time for Train ID

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

Code identifying the Reference Identification

UQ
Section Number
REF-02
127
Reference Identification
Optional
String (AN)
Min 1Max 80

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

Usage notes

Host section number.

If Host does not use section number
default value to “1”.

DTM
0300
Detail > OTI Loop Transaction Set Reject > DTM

Date/Time Reference

RequiredMax use 1

To specify pertinent dates and times

  • The DTM segment allows for the provision of date, time, or date and time information required to uniquely identify the original transaction set or portion thereof.
Example
DTM-01
374
Date/Time Qualifier
Required
Identifier (ID)

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

TTD
Tenant Train Departure
DTM-02
373
Date
Required
Date (DT)
CCYYMMDD format

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

DTM
0300
Detail > OTI Loop Transaction Set Reject > DTM

Date/Time Reference Tenant Train Departure

OptionalMax use >1

To specify pertinent dates and times

  • The DTM segment allows for the provision of date, time, or date and time information required to uniquely identify the original transaction set or portion thereof.
Example
Variants (all may be used)
DTMDate/Time Reference
DTM-01
374
Date/Time Qualifier
Required
Identifier (ID)

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

HTD
Host Departure Date
DTM-02
373
Date
Optional
Date (DT)
CCYYMMDD format

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

TED Loop
RequiredMax >1
TED
0700
Detail > OTI Loop Transaction Set Reject > TED Loop > TED

Technical Error Description

RequiredMax use 1

To identify the error and, if feasible, the erroneous segment, or data element, or both

Example
TED-01
647
Application Error Condition Code
Required
Identifier (ID)
Min 1Max 3

Code indicating application error condition

TED-02
3
Free-form Message
Optional
String (AN)
Min 1Max 60

Free-form text

  • If used, TED02 will contain a generic description of the data in error (e.g., part number, date, reference number, etc.).
TED-03
721
Segment ID Code
Optional
Identifier (ID)
Min 2Max 3

Code specifying the segment ID of the data segment in error (See Appendix A - Number 77)

TED-04
719
Segment Position in Transaction Set
Optional
Numeric (N0)
Min 1Max 10

The numerical count position of this data segment from the start of the transaction set: the transaction set header is count position 1

TED-05
C030
Position in Segment
OptionalMax use 1
Code indicating the relative position of the simple data element or composite data structure in error within a segment, count beginning with 1 for the position immediately following the segment ID; additionally indicating the relative position of a repeating structure in error, count beginning with 1 for the position immediately following the preceding element separator; additionally indicating the relative position of a component of a composite data structure in error, count beginning with 1 for the position following the preceding element or repetition separator
C030-01
722
Element Position in Segment
Required
Numeric (N0)
Min 1Max 2

This is used to indicate the relative position of a simple data element, or the relative position of a composite data structure with the relative position of the component within the composite data structure, in error; in the data segment the count starts with 1 for the simple data element or composite data structure immediately following the segment ID

TED-06
C999
Reference in Segment
OptionalMax use 1
To hold the reference number of a data element and optionally a component data element within a composite
C999-01
725
Data Element Reference Code
Required
String (AN)
Min 1Max 4

Code identifying the location of the data element in the Data Element Dictionary

TED-07
724
Copy of Bad Data Element
Optional
String (AN)
Min 1Max 99

This is a copy of the data element in error

TED Loop end
OTI Loop Transaction Set Reject end
SE
0900
Detail > 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

Detail 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

EDI Samples

Sample 1 (TA - Acceptance)

ISA*00* *00* *02*UP *02*BNSF *200718*0017*U*00705*955094144*0*P*~
GS*TR*UP*BNSF*20200718*0017*000091583*X*008010
ST*EDI 824*915830001
BGN*00*EDI 161*20200718*0017
OTI*TA*SPL*684884***20200718*0016*148756886*568860001
REF*7W*YGAT284418*YTNNSJ
REF*UQ*1
DTM*TTD*20200718
DTM*HTD*20200719
SE*8*915830001
GE*1*000091583
IEA*1*955094144

Sample 2 (TR - Rejection)

ISA*00* *00* *02*UP *02*BNSF *200718*0005*U*00705*955087261*0*P*~
GS*TR*UP*BNSF*20200718*0005*000091582*X*008010
ST*EDI 824*915820001
BGN*00*EDI 161*20200718*0005
OTI*TR*SPL*876158***20200718*0004*148756768*567680001
REF*7W*HVAWBAK117*KEDEPA
REF*UQ*1
DTM*TTD*20200717
DTM*HTD*20200717
TED*006*DUPLICATE*BTS*3*13*373*200717
TED*006*DUPLICATE*BTS*3*15*1470*1
TED*006*DUPLICATE*BTS*3*14*41*KEDEPA
SE*11*915820001
GE*1*000091582
IEA*1*955087261

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