Credit funds to a wallet (load money)

Load funds into a customer wallet. This API credits the specified amount to the wallet associated with the provided kit number.

Idempotent on the externalTransactionId field. If the same externalTransactionId is sent again, the system returns the original transaction result without processing a duplicate credit.

The transactionType field indicates the nature of the credit. Common values are M2C (merchant-to-customer transfer), LOAD (wallet loading), and REFUND (refund of a previous purchase).

The amount must be a positive number. Currency defaults to INR if not specified.

curl -X POST "https://api.m2p.com/Yappay/transaction-manager/credit" \  -H "Content-Type: application/json" \  -d '{    "kitNo": "KIT20260306001234",    "amount": 5000,    "currency": "INR",    "externalTransactionId": "ACME-TXN-20260306-001",    "transactionType": "M2C",    "narration": "Salary credit - March 2026",    "senderName": "ACME Corp Payroll"  }'

{
  "status": "success",
  "data": {
    "transactionId": "TXN20260306001234",
    "externalTransactionId": "ACME-TXN-20260306-001",
    "amount": 5000,
    "availableBalance": 20000,
    "transactionStatus": "COMPLETED",
    "transactionDate": "2026-03-06T10:30:00Z"
  }
}

{
  "result": null,
  "exception": {
    "detailMessage": "Transaction amount must be greater than zero",
    "shortMessage": "Invalid amount",
    "errorCode": "TXN_002",
    "languageCode": "en"
  },
  "pagination": null
}

{
  "result": null,
  "exception": {
    "detailMessage": "Transaction with this externalTransactionId already exists",
    "shortMessage": "Duplicate transaction",
    "errorCode": "TXN_009",
    "languageCode": "en"
  },
  "pagination": null
}