Testing resources

This guide covers everything you need to test your Odus integration in sandbox before going live: test card numbers, example webhook payloads.

Test card numbers

Use the card numbers below to simulate different payment outcomes. For all cards:

• Use any future expiry date (e.g. 12/40)
• Use any CVV (e.g. 100)
• Use any cardholder name (e.g. Test User)

Stripe

Card number	Brand	Scenario	Description
4242424242424242	Visa	Success	Payment is authorized immediately
5555555555554444	Mastercard	Success	Payment is authorized immediately
378282246310005	Amex	Success	Payment is authorized immediately
6011111111111117	Discover	Success	Payment is authorized immediately
4000000000003220	Visa	3DS	Triggers a 3DS redirect; complete to authorize
4000000000000002	Visa	Declined	Card is always declined with a generic decline error

For the full list, see the Stripe testing documentation.

Adyen

Card number	Brand	Scenario	Description
370000000000018	Amex	Success	Payment is authorized immediately
5555444433331111	Mastercard	Success	Payment is authorized immediately
6011000000000004	Discover	Success	Payment is authorized immediately
371449635398431	Amex	3DS	Triggers a 3DS redirect; complete to authorize

For the full list, see the Adyen test cards documentation.

Checkout.com

Card number	Brand	Scenario	Description
4242424242424242	Visa	Success	Payment is authorized immediately

For the full list, see the Checkout.com testing documentation.

PayPal

PayPal does not use test card numbers. Instead, you create sandbox buyer and seller accounts in the PayPal Developer Dashboard. See the PayPal integration guide for setup instructions.

Test webhook payloads

After creating a webhook subscriber, you will receive events at your configured URL. Below are example payloads for common events. The data field structure matches the corresponding API response — see the Webhooks guide for full details.

tip

Use ngrok or a similar tool to expose your local server to the internet during development. You can also inspect delivered webhooks in the Dashboard under Request Logs.

payment.created

Sent when a payment is created via POST /payments.

{
  "eventId": "evt_abc123",
  "eventType": "payment.created",
  "profile": "whs_xyz456",
  "timestamp": "2026-05-12T10:00:00Z",
  "data": {
    "id": "pay_def789",
    "status": "open",
    "displayStatus": "unattempted",
    "amount": 1000,
    "currency": "usd",
    "amountCaptured": 0,
    "amountReversed": 0,
    "isCaptured": false,
    "isReversed": false,
    "isFullyReversed": false,
    "isChargebacked": false,
    "isRetrying": false,
    "isRecovered": false,
    "initiator": "customer",
    "customer": null,
    "paymentMethod": null,
    "metadata": {}
  }
}

payment.succeeded

Sent when a payment is successfully authorized (and captured, if automatic).

{
  "eventId": "evt_ghi012",
  "eventType": "payment.succeeded",
  "profile": "whs_xyz456",
  "timestamp": "2026-05-12T10:01:30Z",
  "data": {
    "id": "pay_def789",
    "status": "succeeded",
    "displayStatus": "succeeded",
    "amount": 1000,
    "currency": "usd",
    "amountCaptured": 1000,
    "amountReversed": 0,
    "isCaptured": true,
    "isReversed": false,
    "isFullyReversed": false,
    "isChargebacked": false,
    "isRetrying": false,
    "isRecovered": false,
    "initiator": "customer",
    "customer": {
      "id": "cus_jkl345"
    },
    "paymentMethod": {
      "id": "pm_mno678",
      "type": "card",
      "card": {
        "brand": "visa",
        "lastFour": "4242",
        "expMonth": "12",
        "expYear": "2040"
      }
    },
    "metadata": {}
  }
}

payment.attempt_failed

Sent when a payment authorization attempt fails (e.g. card declined).

{
  "eventId": "evt_pqr901",
  "eventType": "payment.attempt_failed",
  "profile": "whs_xyz456",
  "timestamp": "2026-05-12T10:01:30Z",
  "data": {
    "id": "pay_def789",
    "status": "open",
    "displayStatus": "failed",
    "amount": 1000,
    "currency": "usd",
    "amountCaptured": 0,
    "amountReversed": 0,
    "isCaptured": false,
    "isReversed": false,
    "isFullyReversed": false,
    "isChargebacked": false,
    "isRetrying": false,
    "isRecovered": false,
    "initiator": "customer",
    "customer": {
      "id": "cus_jkl345"
    },
    "paymentMethod": null,
    "metadata": {}
  }
}

payment.requires_action

Sent when a payment requires customer action, such as 3DS authentication.

{
  "eventId": "evt_stu234",
  "eventType": "payment.requires_action",
  "profile": "whs_xyz456",
  "timestamp": "2026-05-12T10:01:15Z",
  "data": {
    "id": "pay_def789",
    "status": "requires_action",
    "displayStatus": "incomplete",
    "amount": 1000,
    "currency": "usd",
    "amountCaptured": 0,
    "amountReversed": 0,
    "isCaptured": false,
    "isReversed": false,
    "isFullyReversed": false,
    "isChargebacked": false,
    "isRetrying": false,
    "isRecovered": false,
    "initiator": "customer",
    "customer": {
      "id": "cus_jkl345"
    },
    "paymentMethod": null,
    "action": {
      "redirectUrl": "https://sandbox-api.odus.com/checkout/redirect/pay_def789"
    },
    "metadata": {}
  }
}

subscription.active

Sent when a subscription becomes active after a successful initial payment.

{
  "eventId": "evt_vwx567",
  "eventType": "subscription.active",
  "profile": "whs_xyz456",
  "timestamp": "2026-05-12T10:02:00Z",
  "data": {
    "id": "sub_yza890",
    "status": "active",
    "customer": {
      "id": "cus_jkl345"
    },
    "items": [
      {
        "price": {
          "id": "price_bcd123",
          "amount": 1000,
          "currency": "usd",
          "interval": "month",
          "intervalCount": 1
        },
        "quantity": 1
      }
    ],
    "currentPeriodStart": "2026-05-12T10:02:00Z",
    "currentPeriodEnd": "2026-06-12T10:02:00Z",
    "metadata": {}
  }
}