Acme Maybank Singapore Payments (H2H)

This describes validations and allowed data formats for Acme payments going through Maybank MBB Singapore (SWIFT BIC: MBBESGSGXXX). These rules are validated by Acme and further validated by the bank. These rules may be stricter than what the bank requires.

Common DefinitionsCopy Anchor Link

• SWIFT Character Set:
  • The 26 uppercase Latin letters A-Z
  • The 26 lowercase Latin letters a-z
  • The 10 digits 0-9
  • Forward slash /
  • Hyphen -
  • Question mark ?
  • Colon :
  • Left and right parentheses ( )
  • Full stop .
  • Comma ,
  • Single quote '
  • Plus sign +
  • Space

General notesCopy Anchor Link

• Currency must be SGD for FAST, GIRO, and PAYNOW payments. BKTR payments are not restricted to SGD.
• receiver.bank (FAST and GIRO) is the beneficiary bank's BIC11. Acme validates it as alphanumeric with a maximum of 11 characters.

Field visibility on bank portal and statementsCopy Anchor Link

Use this as a guide when deciding the value to populate in each field.

Customer ReferenceCopy Anchor Link

• customerReference is an optional field.
• If not provided, Maybank's core banking system generates a reference ID automatically.
• Acme suggest to populate the Invoice Number or Document Reference Number that will be sent to the beneficiary in this field.

Payment DetailsCopy Anchor Link

• paymentDetails is an optional field for FAST, PAYNOW, and GIRO payments. It must not be provided for BKTR.
• It is sent to the beneficiary's bank as additional payment information.
• Whether the beneficiary sees this value depends on the beneficiary's bank. Not all banks surface this field to account holders.

Purpose codesCopy Anchor Link

FASTCopy Anchor Link

Example Request:

{
  "type": "FAST",
  "paymentDate": "2026-06-30",
  "senderAccountId": "intacc_0H3BQNTQGBW2W",
  "senderAccountCurrency": "SGD",
  "currency": "SGD",
  "payments": [
    {
      "amount": 10000,
      "customerReference": "INV-001",
      "paymentDetails": "Payment for invoice 001",
      "purposeCode": "OTHR",
      "receiver": {
        "name": "Tan Ah Kow",
        "bank": "DBSSSGSGXXX",
        "bankAccountNumber": "9876543210"
      }
    }
  ]
}

PAYNOWCopy Anchor Link

Example Request:

{
  "type": "PAYNOW",
  "paymentDate": "2026-06-30",
  "senderAccountId": "intacc_0H3BQNTQGBW2W",
  "senderAccountCurrency": "SGD",
  "currency": "SGD",
  "payments": [
    {
      "amount": 10000,
      "customerReference": "INV-002",
      "paymentDetails": "Payment for invoice 002",
      "purposeCode": "OTHR",
      "receiver": {
        "name": "Tan Ah Kow",
        "proxyType": "MOBILE",
        "proxyValue": "+6591234567"
      }
    }
  ]
}

GIROCopy Anchor Link

Example Request:

{
  "type": "GIRO",
  "paymentDate": "2026-06-30",
  "senderAccountId": "intacc_0H3BQNTQGBW2W",
  "senderAccountCurrency": "SGD",
  "currency": "SGD",
  "payments": [
    {
      "amount": 10000,
      "customerReference": "INV-003",
      "paymentDetails": "Payment for invoice 003",
      "purposeCode": "SALA",
      "receiver": {
        "name": "Tan Ah Kow",
        "bank": "OCBCSGSGXXX",
        "bankAccountNumber": "9876543210"
      }
    }
  ]
}

BKTRCopy Anchor Link

Book transfers move funds between accounts within Maybank SG (MBBESGSGXXX).

Example Request:

{
  "type": "BKTR",
  "paymentDate": "2026-06-30",
  "senderAccountId": "intacc_0H3BQNTQGBW2W",
  "senderAccountCurrency": "SGD",
  "currency": "SGD",
  "payments": [
    {
      "amount": 10000,
      "customerReference": "INV-004",
      "receiver": {
        "name": "Tan Ah Kow",
        "bankAccountNumber": "9876543210"
      }
    }
  ]
}

Payment ResponseCopy Anchor Link

Payment status definitions:

Maybank status mappingCopy Anchor Link

Maybank reports its own transaction status in the return file it sends back to Acme.

Acme maps each Maybank status to an Acme payment status.