The new format will pass back data along with the webhook. The available events you will receive are:
Event TypeDescription and Triggers
SubscriptionCreatedAn attempt to create subscription was successful.Triggers when a subscription creation is going to be created using the following end points:Create Subscription (POST /api/Subscriptions)Create Customer (POST /api/Customers) when subscriptions are going to be createdCreate Subscription (POST /api/Customers/customerId/subscriptions)Create Checkout (POST /api/Checkout)
SubscriptionChangedUpdate Subscription (PUT /api/Subscriptions/{{Active Subscription Id}})
SubscriptionFailedAn attempt to create subscription was unsuccessful.
ACHInvoiceStatusChanged deprecated - use InvoiceStatusChangedThe webhook is triggered on any status change of an invoice that is going to be paid with ACH payment method. Initial status assignment is NOT considered as “status change”.**Notes:**Please use InvoiceStatusChanged. This Webhook will be deprecated in the future.
InvoiceCreatedThe webhook is triggered when an invoice is created in the systemThe event should have InvoiceCreated typeNotes: one-time payment invoices recurrent payment invoices installments payment invoices
InvoiceStatusChangedThe webhook is triggered on any status change of an invoice. Initial status assignment is NOT considered as “status change”.**Notes:**status of the invoice can be changed by Update Invoice request (Update an invoice by invoice Id that is currently in the ‘Pending’ or ‘Recycle’ state)webhook should be triggered for Refund invoices as well (incl. changes from Pending to Refund / PartialRefund / RefundPending / RefundDeclined / RefundFailed statuses)webook should be triggered for one time payments and recurrent invoices
InvoiceAttemptCreated (RecordId is InvoiceId)The webhook is triggered when an invoice attempt is created in the system**Notes:**incl.one-time payment invoicesrecurrent payment invoicesinstallments payment invoices
InvoiceAttemptStatusChanged (RecordId is InvoiceId)The webhook is triggered on any status change of an invoice attempt. Initial status assignment is NOT considered as “status change”.**Notes:**webhook should be triggered for Refund invoices as well (incl. changes from Pending to Refund / PartialRefund / RefundPending / RefundDeclined / RefundFailed statuses)webook should be triggered for one time payments and recurrent (subscription or installment) invoices
WebhookTestDuring Setup - a test webhook is sent
Webhook payload examples: Subscription Created 
{
  "Body": "{\"Subscription\":{\"SubscriptionId\":2691,\"CustomerId\":9687,\"MerchantSubscriptionRefId\":\"1234-5678-9101\",\"NetworkTransactionId\":null,\"BillingFrequencyType\":\"Daily\",\"SubscriptionStatusType\":\"Current\",\"SubscriptionCancelType\":\"Immediate\",\"InitialBillDate\":\"4/26/2024\",\"NextBillDate\":\"1/28/2025\",\"TaxAddress\":null,\"PaymentMethodIds\":[25953],\"CancelledAt\":null,\"BillingPlans\":[{\"SubscriptionBillingPlanId\":3117,\"SubscriptionId\":2691,\"Name\":\"Billing Plan 1\",\"Value\":10.99,\"StartDate\":\"4/26/2024\",\"CyclesRemaining\":-1,\"CycleCount\":-1,\"ValueType\":\"Standard\"}],\"Message\":null,\"ProcessorRawResponse\":null},\"EventDateTime\":\"2025-01-28T18:09:27.6118027Z\",\"EventType\":\"SubscriptionCreated\",\"RevolvMerchantId\":579}",
  "Entropy": "4be04dcd-5b61-4608-9d81-c2cf9748ec76"
}
Subscription Changed 
{
  "Body": "{\"Subscription\":{\"SubscriptionId\":2691,\"CustomerId\":9687,\"MerchantSubscriptionRefId\":\"YourSubscriptionId-123\",\"NetworkTransactionId\":null,\"BillingFrequencyType\":\"Monthly\",\"SubscriptionStatusType\":\"Recycle\",\"SubscriptionCancelType\":\"Immediate\",\"InitialBillDate\":\"4/26/2024\",\"NextBillDate\":\"2/17/2025\",\"TaxAddress\":null,\"PaymentMethodIds\":[25953],\"CancelledAt\":null,\"BillingPlans\":[{\"SubscriptionBillingPlanId\":3117,\"SubscriptionId\":2691,\"Name\":\"Billing Plan 1\",\"Value\":10.99,\"StartDate\":\"4/26/2024\",\"CyclesRemaining\":-1,\"CycleCount\":-1,\"ValueType\":\"Standard\"}],\"Message\":null,\"ProcessorRawResponse\":null},\"EventDateTime\":\"2025-01-28T18:14:37.5805028Z\",\"EventType\":\"SubscriptionChanged\",\"RevolvMerchantId\":579}",
  "Entropy": "d18771c5-ee64-4aec-8129-6e2a8fa4ea57"
}
Invoice created 
{
  "Body": "{\"Invoice\":{\"InvoiceId\":330973,\"ParentInvoiceId\":null,\"CustomerId\":null,\"MerchantInvoiceRefId\":\"ABC12345DProbVs1\",\"PaymentMethod\":{\"PaymentMethodId\":7836,\"BillingAddressId\":9020,\"BillingFirstName\":\"John\",\"BillingLastName\":\"Doe\",\"MerchantPaymentMethodRefId\":null,\"BillingAddress\":{\"AddressId\":9020,\"AddressLine1\":\"32 Main\",\"AddressLine2\":null,\"City\":\"Aliso Viejo\",\"State\":\"CA\",\"PostalCode\":\"90210\",\"PhoneNumber\":null,\"Email\":null,\"Country\":\"US\"},\"PaymentMethodAchDetails\":null,\"PaymentMethodCreditCardDetails\":{\"BinNumber\":\"411111\",\"PaymentLast4Digit\":\"1111\",\"PaymentExpirationDate\":\"1130\"}},\"InvoiceStatus\":\"OneTimePaymentPending\",\"Subtotal\":0.13,\"Tax\":0,\"Total\":0.13,\"BillingDate\":\"1/27/2025\",\"MerchantLegalName\":\"[TEST} House Nuvei \",\"MerchantCustomerRefId\":null,\"CustomerFirstName\":null,\"CustomerLastName\":null,\"SubscriptionId\":null,\"InstallmentId\":null,\"EligibilityFailReason\":null,\"MerchantSubscriptionRefId\":null,\"NetworkTransactionId\":null,\"InvoiceLineItems\":[],\"InvoiceAttempts\":[],\"InvoiceStatusEnum\":\"OneTimePaymentPending\"},\"EventDateTime\":\"2025-01-27T18:18:45.0782738Z\",\"EventType\":\"InvoiceCreated\",\"RevolvMerchantId\":579}",
  "Entropy": "a5673ed2-93f5-491c-87df-6548edb20b39"
}
Invoice status changed 
{
  "Body":"{\u0022Invoice\u0022:{\u0022InvoiceId\u0022:330973,\u0022ParentInvoiceId\u0022:null,\u0022CustomerId\u0022:null,\u0022MerchantInvoiceRefId\u0022:\u0022ABC12345DProbVs1\u0022,\u0022PaymentMethod\u0022:{\u0022PaymentMethodId\u0022:7836,\u0022BillingAddressId\u0022:9020,\u0022BillingFirstName\u0022:\u0022John\u0022,\u0022BillingLastName\u0022:\u0022Doe\u0022,\u0022MerchantPaymentMethodRefId\u0022:null,\u0022BillingAddress\u0022:{\u0022AddressId\u0022:9020,\u0022AddressLine1\u0022:\u002232 Main\u0022,\u0022AddressLine2\u0022:null,\u0022City\u0022:\u0022Aliso Viejo\u0022,\u0022State\u0022:\u0022CA\u0022,\u0022PostalCode\u0022:\u002290210\u0022,\u0022PhoneNumber\u0022:null,\u0022Email\u0022:null,\u0022Country\u0022:\u0022US\u0022},\u0022PaymentMethodAchDetails\u0022:null,\u0022PaymentMethodCreditCardDetails\u0022:{\u0022BinNumber\u0022:\u0022411111\u0022,\u0022PaymentLast4Digit\u0022:\u00221111\u0022,\u0022PaymentExpirationDate\u0022:\u00221130\u0022}},\u0022InvoiceStatus\u0022:\u0022Paid\u0022,\u0022Subtotal\u0022:0.13,\u0022Tax\u0022:0,\u0022Total\u0022:0.13,\u0022BillingDate\u0022:\u00221/27/2025\u0022,\u0022MerchantLegalName\u0022:\u0022[TEST} House Nuvei \u0022,\u0022MerchantCustomerRefId\u0022:null,\u0022CustomerFirstName\u0022:null,\u0022CustomerLastName\u0022:null,\u0022SubscriptionId\u0022:null,\u0022InstallmentId\u0022:null,\u0022EligibilityFailReason\u0022:null,\u0022MerchantSubscriptionRefId\u0022:null,\u0022NetworkTransactionId\u0022:\u0022480213756277396\u0022,\u0022InvoiceLineItems\u0022:[],\u0022InvoiceAttempts\u0022:[{\u0022InvoiceAttemptId\u0022:160406,\u0022Amount\u0022:0.13,\u0022InvoiceAttemptStatus\u0022:\u0022Success\u0022,\u0022InvoiceAttemptDate\u0022:\u00222025-01-27T18:18:48.2210112Z\u0022,\u0022PaymentProcessor\u0022:\u0022Nuvei\u0022,\u0022ProcessorTransactionId\u0022:\u00227110000000009866741\u0022,\u0022ResponseCode\u0022:\u0022APPROVED\u0022,\u0022ResponseMessage\u0022:\u0022APPROVED\u0022,\u0022ProcessorRawResponse\u0022:null,\u0022PaymentMethod\u0022:{\u0022PaymentMethodId\u0022:7836,\u0022BillingAddressId\u0022:9020,\u0022BillingAddress\u0022:{\u0022AddressId\u0022:9020,\u0022AddressLine1\u0022:\u002232 Main\u0022,\u0022AddressLine2\u0022:null,\u0022City\u0022:\u0022Aliso Viejo\u0022,\u0022State\u0022:\u0022CA\u0022,\u0022PostalCode\u0022:\u002290210\u0022,\u0022PhoneNumber\u0022:null,\u0022Email\u0022:null,\u0022Country\u0022:\u0022US\u0022},\u0022BillingFirstName\u0022:\u0022John\u0022,\u0022BillingLastName\u0022:\u0022Doe\u0022,\u0022MerchantPaymentMethodRefId\u0022:null,\u0022PaymentMethodAchDetails\u0022:null,\u0022PaymentMethodCreditCardDetails\u0022:{\u0022BinNumber\u0022:\u0022411111\u0022,\u0022PaymentLast4Digit\u0022:\u00221111\u0022,\u0022PaymentExpirationDate\u0022:\u00221130\u0022}},\u0022EligibilityCheckOrderCode\u0022:null,\u0022ProcessorMerchantId\u0022:\u002233762194017370\u0022}],\u0022InvoiceStatusEnum\u0022:\u0022Paid\u0022},\u0022EventDateTime\u0022:\u00222025-01-27T18:18:48.3105823Z\u0022,\u0022EventType\u0022:\u0022InvoiceStatusChanged\u0022,\u0022RevolvMerchantId\u0022:579}",
  "Entropy":"b39d4914-cb32-46d0-b3ab-e832539d3d7b"
}
Invoice attempt created 
{
  "Body": "{\"Attempt\":{\"InvoiceId\":330973,\"SubscriptionId\":0,\"InstallmentId\":0,\"ProcessorMerchantId\":\"33762194017370\",\"InvoiceAttemptId\":160406,\"Amount\":0.13,\"InvoiceAttemptStatus\":\"Success\",\"InvoiceAttemptDate\":\"2025-01-27T18:18:48.2210112Z\",\"PaymentProcessor\":\"Nuvei\",\"ProcessorTransactionId\":\"7110000000009866741\",\"ResponseCode\":\"APPROVED\",\"ResponseMessage\":\"APPROVED\",\"ProcessorRawResponse\":null,\"PaymentMethod\":{\"PaymentMethodId\":7836,\"BillingAddressId\":9020,\"BillingAddress\":{\"AddressId\":9020,\"AddressLine1\":\"32 Main\",\"AddressLine2\":null,\"City\":\"Aliso Viejo\",\"State\":\"CA\",\"PostalCode\":\"90210\",\"PhoneNumber\":null,\"Email\":null,\"Country\":\"US\"},\"BillingFirstName\":\"John\",\"BillingLastName\":\"Doe\",\"MerchantPaymentMethodRefId\":null,\"PaymentMethodAchDetails\":null,\"PaymentMethodCreditCardDetails\":{\"BinNumber\":\"411111\",\"PaymentLast4Digit\":\"1111\",\"PaymentExpirationDate\":\"1130\"}},\"EligibilityCheckOrderCode\":null},\"EventDateTime\":\"2025-01-27T18:18:48.3407882Z\",\"EventType\":\"InvoiceAttemptCreated\",\"RevolvMerchantId\":579}",
  "Entropy": "813a9c7a-b243-49b0-9708-6cae966817d1"
}
Invoice attempt status changed 
{
  "Body": "{\"Attempt\":{\"InvoiceId\":331122,\"SubscriptionId\":2692,\"InstallmentId\":0,\"ProcessorMerchantId\":\"33762194017370\",\"InvoiceAttemptId\":160541,\"Amount\":10.99,\"InvoiceAttemptStatus\":\"Fail\",\"InvoiceAttemptDate\":\"2025-01-28T18:15:46.2660036Z\",\"PaymentProcessor\":\"Nuvei\",\"ProcessorTransactionId\":\"7110000000009950160\",\"ResponseCode\":\"-1\",\"ResponseMessage\":\"Decline\",\"ProcessorRawResponse\":null,\"PaymentMethod\":{\"PaymentMethodId\":25954,\"BillingAddressId\":27426,\"BillingAddress\":{\"AddressId\":27426,\"AddressLine1\":\"100 Main Street\",\"AddressLine2\":\"\",\"City\":\"Irvine\",\"State\":\"CA\",\"PostalCode\":\"92602\",\"PhoneNumber\":null,\"Email\":null,\"Country\":\"US\"},\"BillingFirstName\":\"John\",\"BillingLastName\":\"Doe\",\"MerchantPaymentMethodRefId\":\"payment-method-ref-id_hgays-213-44d\",\"PaymentMethodAchDetails\":null,\"PaymentMethodCreditCardDetails\":{\"BinNumber\":\"445700\",\"PaymentLast4Digit\":\"0005\",\"PaymentExpirationDate\":\"1025\"}},\"EligibilityCheckOrderCode\":null},\"EventDateTime\":\"2025-01-28T18:15:49.7836702Z\",\"EventType\":\"InvoiceAttemptStatusChanged\",\"RevolvMerchantId\":579}",
  "Entropy": "5b9e1df5-d753-4489-bfa5-ac886d3a3348"
}
Webhook Test 
{
  "Body": "{\"EventDateTime\":\"2025-01-27T16:37:42.3029596Z\",\"EventType\":\"WebhookTest\",\"RevolvMerchantId\":119}",
  "Entropy": "2c6c52f6-622d-46e1-ae79-d7991020c332"
}
Each Event has following attributes:
AttributeDescription
BodyA Serialized string of a JSON object. This will include ‘EventType’ and ‘RevolvMerchantId
EntropyA random string to make the payload more cryptographically secure
Billing Plans