You can expect the below object when you register a webhook for the following events:

expense.create
expense.update

Raw sample

{
  "status": "incomplete",
  "description": null,
  "invoice_number": null,
  "id": "EXP-BC62A49C41",
  "transaction": {
    "amount": 100.0,
    "amount_currency": "AED",
    "billing_amount": 100.0,
    "billing_amount_currency": "AED"
  },
  "card": {
    "identifier": "CRD-40568CE75F",
    "name": "Phu's card test",
    "last4": "5178"
  },
  "user": {
    "identifier": "MBOWNR-26027AA279",
    "fullname": "Dong Ngo",
    "email": "test@mamopay.com"
  },
  "category": null,
  "tax_code": null,
  "payment_account": null,
  "expense_account": null,
  "vendor": null,
  "receipt_uploaded": false,
  "created_at": "18 Dec 2025, 11:24AM",
  "updated_at": "18 Dec 2025, 11:24AM",
  "event_type": "update"
}

Field Descriptions

Field	Type	Description
status	String	Expense status (`incomplete`-`pending_review`-`ready`-`synced`)
description	String	Expense description
invoice_number	String	Invoice number
id	String	Expense ID
transaction	Object	Transaction details containing amount and currency information
transaction.amount	Number	Transaction amount
transaction.amount_currency	String	Transaction currency code
transaction.billing_amount	Number	Billing amount
transaction.billing_amount_currency	String	Billing currency code
category	String	Expense category
tax_code	String	Tax code
payment_account	String	Payment account
expense_account	String	Expense account
vendor	String	Vendor information
receipt_uploaded	Boolean	Whether receipt is uploaded
created_at	String	Expense creation date
updated_at	String	Expense last update date
event_type	String	Corresponding Webhook Event