> ## Documentation Index
> Fetch the complete documentation index at: https://docs.zapier.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Send a test delivery

> Trigger a sample (synthetic) `connection.expiry_scheduled` delivery to this webhook's `callback_url`, so you can validate your handler and signature verification before relying on real events. The delivered payload is a synthetic example and is clearly marked as a test. In addition to the `webhook-id`, `webhook-timestamp`, and `webhook-signature` headers sent on every delivery, a test delivery also carries a `webhook-test: true` header.



## OpenAPI

````yaml /api-reference/specs/connections.yaml post /connections/v1/webhooks/{id}/test
openapi: 3.1.0
info:
  title: Connections API
  description: >-
    Register and manage webhook subscriptions for the connections your White
    Label (partner) account manages. Receive a signed event whenever one of
    those connections expires and needs to be reconnected.
  version: v1
  contact:
    url: https://docs.zapier.com
servers:
  - url: https://api.zapier.com
    description: Production
security:
  - OAuth: []
tags:
  - name: Connection Webhooks
    description: >-
      Operations for managing per-partner webhook subscriptions for connection
      events
paths:
  /connections/v1/webhooks/{id}/test:
    post:
      tags:
        - Connection Webhooks
      summary: Send a test delivery
      description: >-
        Trigger a sample (synthetic) `connection.expiry_scheduled` delivery to
        this webhook's `callback_url`, so you can validate your handler and
        signature verification before relying on real events. The delivered
        payload is a synthetic example and is clearly marked as a test. In
        addition to the `webhook-id`, `webhook-timestamp`, and
        `webhook-signature` headers sent on every delivery, a test delivery also
        carries a `webhook-test: true` header.
      operationId: createConnectionWebhookTest
      parameters:
        - in: path
          name: id
          schema:
            type: string
            format: uuid
          description: UUID of the connection webhook.
          required: true
      responses:
        '202':
          description: Test delivery enqueued.
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Errors'
          description: 'Validation Error: Return fields with errors.'
        '404':
          description: Not found.
      security:
        - OAuth:
            - connection:webhook:write
            - external
components:
  schemas:
    Errors:
      type: object
      properties:
        errors:
          type: array
          items:
            $ref: '#/components/schemas/ErrorDetail'
          description: An array of error objects.
      required:
        - errors
    ErrorDetail:
      type: object
      description: >-
        Per the schema defined in the engineering index.


        https://engineering.zapier.com/guides/api-design-guidelines/error-handling/
      properties:
        code:
          type: string
          description: A unique identifier for this particular occurrence of the problem.
        detail:
          type: string
          description: >-
            A human-readable explanation specific to this occurrence of the
            problem.
        status:
          type: integer
          description: HTTP status code for that error.
        title:
          type: string
          description: A short summary of the problem.
        source:
          type: object
          additionalProperties: {}
          description: An object containing references to the primary source of the error.
      required:
        - code
        - detail
  securitySchemes:
    OAuth:
      type: oauth2
      description: OAuth 2.0 authentication.
      flows:
        authorizationCode:
          authorizationUrl: https://zapier.com/oauth/authorize
          tokenUrl: https://zapier.com/oauth/token
          scopes:
            connection:webhook:read: Grants connection:webhook:read access
            external: Scope that gives access to all Public APIs
            connection:webhook:write: Grants connection:webhook:write access
        clientCredentials:
          tokenUrl: https://zapier.com/oauth/token
          scopes:
            connection:webhook:read: Grants connection:webhook:read access
            external: Scope that gives access to all Public APIs
            connection:webhook:write: Grants connection:webhook:write access

````