Message Fields

Title

Description

Title

Description

Title

Description

Title

Description

Title

Description

Title

Description

Title

Description

Title

Description

Title

Description

Title

Description

Title

Description

Title

Description

Field

Name

Format

Attribute

DUKPT Key

0100

0110

0200

0210

0220

0221

0230

0300

0310

0420

0421

0430

0520

0521

0530

0800

0810

Notes

0

Message Type Indicator (MTI)

n 4

M

M

M

M

M

M

M

M

M

M

M

M

M

M

1

Bitmap

BITMAP

b 16

M

M

M

M

M

M

M

M

M

M

M

M

M

M

2

PAN

LLVAR

n ..19

07

07

07

07

03

To be used when CHD is not encrypted only.

3

Processing Code

n 6

M

M

M

M

M

M

M

M

03

M

F-3 Processing Code

4

Transaction Amount

n 12

M

M

M

M

M

M

03

03

Amount of the transaction in the lowest denomination of the currency (Currency Code, Transaction).

7

Transmission Date Time

MMDDhhmmss

n 10

M

M

M

M

M

M

M

M

M

M

M

M

M

M

Applies to message rather than transaction. This date/time should be expressed in UTC.

11

System Trace Audit Number

n 6

M

M

M

M

M

M

M

M

M

M

M

M

M

M

12

Local Transaction Time

hhmmss

n 6

M

M

M

M

M

M

M

M

03

M

M

M

The time the transaction occurred (took effect), in the terminal’s local timezone.

13

Local Transaction Date

MMDD

n 4

M

M

M

M

M

M

M

M

03

M

M

M

The date the transaction occurred (took effect), in the terminal’s local timezone.

14

Expiry Date

YYMM

n 4

02

02

02

02

03

22

Point Of Service Entry Mode

n 3

M

M

M

M

03

F-22 Point Of Service Entry Mode

25

Point Of Service Condition Code

n 2

M

M

M

M

03

F-25 Point Of Service Condition Code

35

Track 2 Data

LLVAR

Pz ..37

07

07

07

07

03

F-35 Track 2 Data

To be used when CHD is not encrypted only.

37

Retrieval Reference Number

an 12

15

15

17

15

17

38

Authorisation Code

anp 6

O

O

O

O

03

39

Response Code

an 2

M

M

M

M

M

M

M

F-39 Response Code

41

Card Acceptor Terminal Identification

ans 8

M

M

M

M

M

M

M

M

M

M

M

M

M

M

TNS Terminal Id - ABCD1234

42

Card Acceptor Identification Code

ans 15

M

M

M

M

M

M

M

M

M

M

M

M

M

M

TNS Merchant Id - [0|1|8]00000

48

Reserved Private - Transaction Context Data

LLLTLV

v ..999

M

15

M

15

M

15

M

15

M

F-48 Reserved Private - Transaction Context Data

49

Currency Code, Transaction

n 3

M

M

M

M

M

M

03

03

Numeric Currency Code of the transaction, as defined by ISO4217.

50

Currency Code, Reconciliation

n 3

M

M

Numeric Currency Code of all transaction amounts summarized in the reconciliation, as defined by ISO4217.

52

Payment Card PIN Data

b 8

PIN

08

08

53

Security Related Control Information (DUKPT Key Security Numbers)

b 30

10

10

10

10

10

10

10

10

10

10

10

10

10

10

F-53 Security Related Control Information (DUKPT Key Security Numbers)

Deviation from ISO8583 standard (attribute).

55

Integrated Circuit Card (ICC) Data

LLLVAR

b ..999

05

O

05

O

05

05

Chip data for EMV Contact and Contactless transactions.

Deviation from ISO8583 standard (attribute).

60

Reserved Private - Security Data

LLLTLV

v ..999

M

M

M

M

M

M

M

M

M

M

M

M

M

M

F-60 Reserved Private - Security Data

61

Reserved Private - Encrypted Cardholder Data

LLLTLV

b ..999

07

07

07

07

03

F-61 Reserved Private - Encrypted Cardholder Data

Deviation from ISO8583 standard (attribute).

62

Reserved Private - Cardholder Context Data

LLLTLV

v ..999

O

O

O

03

F-62 Reserved Private - Cardholder Context Data

63

Reserved Private - Product Data

LLLTLV

v ..999

O

O

O

03

F-63 Reserved Private - Product Data

64

MAC

b 8

DATA

21

21

21

21

21

21

10

10

See also Field 128.

F-64 / F-128 Message Authentication Code

66

Settlement Code

n 1

M

F-66 Settlement Code

70

Network Management Information Code

n 3

M

M

F-70 Network Management Information Code

Deviation from ISO8583 standard (attribute).

74

Credits, Number

n 10

M

13

Count of 0200 messages with 21xxxx Processing Code.

75

Credits, Reversal Number

n 10

M

13

Count of 042x messages for 0200 messages with 21xxxx Processing Code.

76

Debits, Number

n 10

M

13

Count of 0100 and 0200 messages with 00xxxx Processing Code.

77

Debits, Reversal Number

n 10

M

13

Count of 042x messages for 0100 and 0200 messages with 00xxxx Processing Code.

80

Inquiries, Number

n 10

M

13

Count of 0200 messages with 31xxxx Processing Code.

81

Authorisations, Number

n 10

M

13

Count of 0100 messages with 00xxxx Processing Code.

86

Credits, Amount

n 16

M

13

Represented in the lowest denomination of the currency (Currency Code, Reconciliation).

Sum of amounts of all Credits.

87

Credits, Reversal Amount

n 16

M

13

Represented in the lowest denomination of the currency (Currency Code, Reconciliation).

Sum of amounts of all Reversals of Credits.

88

Debits, Amount

n 16

M

13

Represented in the lowest denomination of the currency (Currency Code, Reconciliation).

Sum of amounts of all Debits.

89

Debits, Reversal Amount

n 16

M

13

Represented in the lowest denomination of the currency (Currency Code, Reconciliation).

Sum of amounts of all Reversals of Debits.

90

Original Data Elements

n 42

M

F-90 Original Data Elements

Deviation from ISO8583 standard (attribute).

97

Amount, Net Settlement

x+n 16

M

13

Represented in the lowest denomination of the currency (Currency Code, Reconciliation).

Net sum of amounts of all Debits and Credits.

123

Reserved Private - Non-Payment Card PIN Data

LLLTLV

v ..999

08

08

M

F-123 Non-Payment Card PIN Data

124

Reserved Private - Second Card Cardholder Data

LLLTLV

v ..999

22

22

22

03

F-124 Reserved Private - Second Card Cardholder Data

125

Reserved Private - Associated Account Data

LLLTLV

v ..999

O

O

O

F-125 Reserved Private - Associated Account Data

128

MAC

b 8

DATA

21

21

21

21

21

21

10

10

10

10

10

10

See also Field 64.

F-64 / F-128 Message Authentication Code

Message Field Fallback Response Values

The above Message Fields table identifies the fields that apply for each supported Message Type, and the conditions under which they apply. In many cases, a field will be identified as mandatory for a given response Message Type, and the value to be provided in that response is dependent upon the (also mandatory) value supplied in the original Request or Advice message that preceded it.

Should a Request or Advice message be sent that omits a mandatory field, the corresponding response message Response Code will contain a value indicating the request message was not valid. In such cases, any mandatory fields in the response message that depend upon absent request data will be populated with fallback values to ensure the response message remains compliant with the above specification.

The following table lists the fallback values that may be used in such cases.

Title

Description

Title

Description

Title

Description

Title

Field	Name	Fallback Response Value
3	Processing Code	000000
4	Amount, Transaction	000000000000
11	System Trace Audit Number	000000
12	Time, Local Transaction	000000
13	Date, Local Transaction	0000
41	Card Acceptor Terminal Identification	00000000
42	Card Acceptor Identification Code	000000000000000
49	Currency Code, Transaction	000
50	Currency Code, Reconciliation	000
60	Reserved Private - Security Data	Encryption Mode subfield: 00
70	Network Management Information Code	000

Sections