Field Definition DE26 - DE38

Field #26 – POS PIN Capture Code

Field No	Format	Attr
26		n2

The maximum number of PIN characters that can be accepted by the Point-of-Service device.

Valid values are "04" to "12" ("00" to "03" are reserved by ISO) and if the POS device does not accept PINs or it is unknown whether the device does, this value should be set to "12".

Field #28 - Amount, Transaction Fee

Field No	Format	Attr
28		x + n 8

A fee charged, by the acquirer to the issuer, for transaction activity, in the currency of the amount, transaction. X can have a value of either "C" or "D".

Field #29 - Amount, Settlement Fee

Field No	Format	Attr
29		x + n 8

A fee charged, by the acquirer to the issuer, for transaction activity, in the currency of the amount, settlement. X can have a value of either "C" or "D".

Field #30 - Amount, Transaction Processing Fee

Field No	Format	Attr
30		x + n 8

A fee charged by the network for the handling and routing of messages, in the currency of amount, transaction. This field is usually inserted by the network into the applicable messages. X can have a value of either "C" or "D".

Field #31 - Amount, Settlement Processing Fee

Field No	Format	Attr
31		x + n 8

A fee charged by the network for the handling and routing of messages, in the currency of amount, settlement. This field is usually inserted by the network into the applicable messages.

Field #32 - Acquiring Institution Identification Code

Field No	Format	Attr
32	LLVAR	an.. 11

A code identifying the financial institution acting as the acquirer of this customer transaction. The acquirer is the member or system user that signed the merchant, installed the ATM or dispensed cash. This field usually contains the BIN (see PAN) of the acquirer, but could be any other number assigned to it by the relevant authorities.

When a processing center operates for multiple acquirers, this is the code for the individual member or system user, not a code for the processing center.

Field #33 - Forwarding Institution Identification Code

Field No	Format	Attr
33	LLVAR	n.. 11

A code identifying the institution that forwards the transaction in an interchange system en route to the card issuer. For example, assume that an acquirer routes a transaction via a third-party EFT switch to the card issuer. In the request from the acquirer to the EFT switch, this field contains the code of the acquirer. When the request is forwarded by the EFT switch to the card issuer, this field contains the code assigned to the EFT switch.

Field #35 – Track 2 Data

Field No	Format	Attr
35	LLVAR	z..37

The information encoded on Track 2 of the magnetic stripe as defined in ISO 7813, including field separators but excluding the begin sentinel, end sentinel and longitudinal redundancy check characters. The field separator (FS) can be either a "=" or a "D" character. The layout of this field is as follows:

Field	Length
Primary account number	up to 19 digits
Field separator	1 digit
Expiry date (YYMM)	4 digits (or a field separator if not present)
Service restriction code	3 digits (or a field separator if not present)
Discretionary data	balance of available digits

The primary account number, expiry date and service restriction code fields are described in further detail under fields 2, 14 and 40 in this document.

Field #37 – Retrieval Reference Number

Field No	Format	Attr
37		an 12

A reference number supplied by the system retaining the original source information and used to assist in locating that information or a copy thereof.

Field #38 – Authorization code

Field No	Format	Attr
38		n 6

A code assigned by the authorizing institution indicating approval.