# Receipt Send Failed

Fired when receipt delivery fails.

Endpoint: POST receiptSendFailed
Version: 1.0.0

## Request fields (application/json):

  - `eventType` (string, required)
    Human-readable event type

  - `sourceApplicationName` (string, required)
    Enum: "receipt-service"

  - `entityId` (integer, required)
    Merchant/tenant identifier for tenant isolation

  - `createDateTime` (string, required)
    When the event was created (ISO 8601)

  - `payload` (object, required)

  - `payload.notificationMessageId` (string, required)
    Unique message identifier (idempotency key)

  - `payload.status` (string)
    Status context for the event

  - `payload.additionalProperties` (object)
    Event-specific data (e.g. receiptId, channel)

  - `payload.tags` (object)
    Arbitrary tags for routing or filtering

## Response 200:

  - `200` (unknown)
    Webhook processed