# Register an event for a transaction

Endpoint: POST /transactions/{transactionId}/events
Version: 1.0.0
Security: M2X_auth_application

## Path parameters:

  - `transactionId` (string, required)
    The transaction id

## Request fields (application/json):

  - `type` (string, required)
    The type of the event to register
    Enum: "INVOICE_ISSUED", "INVOICE_SETTLED", "CREDIT_NOTE_ISSUED", "CREDIT_NOTE_SETTLED"

  - `timestamp` (string, required)
    The timestamp of the event to register
    Example: "2020-01-01T00:00:00Z"

  - `reference` (any)
    The reference value for the event (if any)
    Example: "INV-1234"

## Response 400 fields (application/json):

  - `message` (string)
    Example: "missing data"

## Response 404 fields (application/json):

  - `message` (string)
    Example: "not found"


## Response 204 fields