---
updatedAt: 2025-11-11T00:33:25.000Z
agentTools:
  projectIndex: https://docs.interswitchgroup.com/llms.txt
---

# Additional Fields

Given the needs of each fintech vary, we have added a feature that allows a fintech to add any number of fields (from the list of allowed fields) to their payload. The additional fields will be sent in an extra field (additional fields) as key values pair for any configured field provided the field is present in the request ISO message.

| IsoField | Json Field Name             |
| -------- | --------------------------- |
| 3        | processingCode              |
| 5        | amountSettle                |
| 7        | transmissionDateAndTime     |
| 9        | conversionRate              |
| 12       | timeLocal                   |
| 13       | dateLocal                   |
| 15       | dateSettle                  |
| 16       | dateConverted               |
| 17       | draftCapture                |
| 18       | merchantType                |
| 19       | acquiringCountryCode        |
| 20       | panExtendedCountryCode      |
| 21       | forwardingInstitutionCode   |
| 22       | posEntryMode                |
| 24       | networkId                   |
| 25       | posConditionCode            |
| 26       | pinCaptureCode              |
| 27       | authIdRespLength            |
| 29       | settlementFee               |
| 32       | acquiringInstitutionIdCode  |
| 33       | forwardingInstitutionIdCode |
| 34       | panExtended                 |
| 40       | serviceRestrictionCode      |
| 46       | additionalDataIso           |
| 47       | additionalDataNational      |
| 48       | additionalData              |
| 50       | currencyCodeSettlement      |
| 54       | additionalAmounts           |
| 57       | authLifeCycle               |
| 66       | settlementCode              |
| 67       | extendedPaymentCode         |
| 68       | receivingInstCountryCode    |
| 69       | settlementInstCountryCode   |
| 86       | amountCredit                |
| 87       | amountCreditReversal        |
| 88       | amountDebit                 |
| 89       | amountDebitReversal         |
| 90       | originalDataElements        |
| 91       | fileUpdateCode              |
| 92       | fileSecurityCode            |
| 93       | responseIndicator           |
| 94       | serviceIndicator            |
| 95       | replacementAmounts          |
| 97       | amountNetSettle             |
| 98       | payee                       |
| 99       | settleInstIdCode            |
| 100      | receivingInstIdCode         |
| 102      | fromAccount                 |
| 103      | toAccount                   |
| 104      | transactionDescription      |
| 118      | paymentNumber               |
| 119      | paymentNumberReversal       |
| 123      | posDataCode                 |
| 127.3    | routingInfo                 |
| 127.4    | posData                     |
| 127.5    | serviceStationData          |
| 127.7    | checkData                   |
| 127.8    | retentionData               |
| 127.9    | additionalNodeData          |
| 127.12   | terminalOwner               |
| 127.13   | posGeographicData           |
| 127.14   | sponsorBank                 |
| 127.15   | addressVerificationData     |
| 127.16   | addressVerificationResult   |
| 127.17   | cardholderInfo              |
| 127.19   | bankDetails                 |
| 127.20   | authorizerSettlementDate    |
| 127.21   | recordId                    |
| 127.23   | payeeNameAndAddress         |
| 127.24   | payeeReference              |
| 127.26   | originalNode                |
| 127.27   | cardVerificationResult      |
| 127.29   | secure3DData                |
| 127.30   | secure3DResult              |
| 127.31   | issuerNetworkId             |
| 127.32   | ucafData                    |
| 127.33   | extendedTranType            |