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

# Send a test payload

> <small>_Requires the `webhooks:operate` scope (or a broader one that includes it)._</small>

Triggers a synthetic delivery to the subscription's URL so the integrator can
validate wiring. Only enabled subscriptions can be tested.



## OpenAPI

````yaml /api-reference/bundled.yaml post /v3/webhooks/{id}/test
openapi: 3.1.0
info:
  version: 3.0.0
  title: Reply API
  description: API for managing email sequences, contacts, and automation workflows
servers:
  - url: https://api.reply.io
security:
  - bearerAuth: []
tags:
  - name: User Account
    description: Account information and authentication verification
  - name: Accounts
    description: Manage accounts (companies/organizations)
  - name: AI SDR Insights
    description: Read AI SDR insights for sequence contacts
  - name: AI SDR Intent Signals
    description: >-
      Read Reply industry IDs and technology slugs used in AI SDR intent-signal
      configuration (typeahead)
  - name: AI SDR Sequences
    description: >-
      Manage AI SDR sequences and their AI SDR-specific settings — create, read
      settings, partial update, autopilot enable/disable/force-start, approval
      mode, generated step types, and playbook/knowledge-base connections
  - name: AI SDR Web Search
    description: Find contacts via AI-driven web search and review past searches
  - name: Attachments
    description: >-
      Upload file attachments used across email templates, sequence steps, and
      direct emails
  - name: Account Lists
    description: Manage account lists and account membership
  - name: Background Jobs
    description: >-
      Track and cancel asynchronous background operations (e.g., email
      validation)
  - name: Custom Fields
    description: Manage custom contact fields
  - name: Direct Outreach
    description: >-
      Send one-off outreach directly to a contact outside of any sequence —
      direct emails and LinkedIn connection requests, messages, InMails, and
      voice messages
  - name: Contact Blacklist Rules
    description: Manage blacklist rules for domains, emails, and email exceptions
  - name: Contact Enrichment
    description: >-
      Enrich contacts with emails, phone numbers, LinkedIn data, and AI-filled
      custom fields
  - name: Contact Lists
    description: Manage contact lists and contact membership
  - name: Contacts
    description: Manage individual contacts
  - name: Email Accounts
    description: Manage email accounts used for sending and receiving
  - name: Email Templates
    description: Manage email templates and template folders
  - name: Email Validations
    description: Estimate and schedule asynchronous email validation jobs
  - name: Holiday Calendars
    description: Manage holiday calendars for scheduling
  - name: Inbox
    description: >-
      Manage inbox threads and per-team thread categories — list/filter, read
      state, replies, category assignment, and meeting-intent flagging
  - name: LinkedIn Accounts
    description: Manage LinkedIn accounts for outreach
  - name: Live Data
    description: >-
      Find new contacts via Live Data searches and read typeahead values for the
      Live Data / Autopilot filter sidebar
  - name: AI SDR Knowledge Bases
    description: >-
      Manage AI SDR knowledge bases — collections of documents, links, reply
      handlers, and reengagement cards that inform the agent's responses
  - name: AI SDR Offers
    description: >-
      Manage AI SDR offers — bundles of company-context inputs (ICP, pain
      points, value propositions, etc.) used to personalize outreach
  - name: AI SDR Pending Approvals
    description: >-
      Review, send, regenerate, and provide feedback on AI-generated messages
      awaiting human approval
  - name: AI SDR Playbooks
    description: >-
      Manage AI SDR playbooks — tone, voice, and style guides applied during
      personalized message generation
  - name: Reports
    description: >-
      Generate and access performance reports across email, calls, tasks,
      LinkedIn, and team performance
  - name: Schedules
    description: Manage email send schedules and timing
  - name: Settings
    description: Manage team and user settings
  - name: Sequence Contacts
    description: Manage contacts within sequences
  - name: Sequence Email Accounts
    description: Manage email accounts linked to sequences
  - name: Sequence Folders
    description: Organize sequences into folders
  - name: Sequence LinkedIn Accounts
    description: Manage LinkedIn accounts linked to sequences
  - name: AI SDR Sequence Preview
    description: >-
      Read and regenerate per-contact previews of the messages a sequence will
      send, and provide feedback on preview messages
  - name: Sequence Steps
    description: Manage individual steps in sequences
  - name: Sequence Templates
    description: Manage sequence templates
  - name: Sequences
    description: Manage email automation sequences
  - name: AI SDR Strategist
    description: Trigger AI Strategist runs
  - name: Tasks
    description: Manage tasks and to-do items
  - name: Webhooks
    description: Manage webhook subscriptions and inspect delivery history
paths:
  /v3/webhooks/{id}/test:
    post:
      tags:
        - Webhooks
      summary: Send a test payload
      description: >-
        <small>_Requires the `webhooks:operate` scope (or a broader one that
        includes it)._</small>


        Triggers a synthetic delivery to the subscription's URL so the
        integrator can

        validate wiring. Only enabled subscriptions can be tested.
      operationId: TestWebhook
      parameters:
        - name: id
          in: path
          required: true
          description: Webhook subscription ID.
          schema:
            type: integer
      responses:
        '204':
          description: Test payload dispatched. The response body is empty.
          content:
            application/json:
              schema:
                description: Empty body
        '400':
          description: Invalid `id` parameter.
          content:
            application/problem+json:
              schema:
                allOf:
                  - allOf:
                      - type: object
                        title: Problem Details
                        description: >-
                          Bare RFC 9457 problem-details envelope. Returned by
                          middleware-level errors

                          that don't carry domain context: 401 Unauthorized
                          (auth middleware),

                          429 Too Many Requests (rate-limit middleware), and
                          route-level 404 / 405 /

                          415 (framework middleware).


                          Business and validation responses extend this envelope
                          and add additional

                          fields — see `business-problem.model.yaml` (adds
                          `code` slug) and

                          `validation-problem.model.yaml` (adds `errors[]`
                          array).
                        properties:
                          title:
                            type: string
                            description: Short, human-readable summary of the problem.
                          status:
                            type: integer
                            description: HTTP status code.
                            minimum: 100
                            maximum: 599
                          detail:
                            type: string
                            description: >-
                              Human-readable explanation specific to this
                              occurrence.
                      - type: object
                        properties:
                          errors:
                            type: array
                            description: >-
                              List of field-level validation errors. Always
                              non-empty when this

                              envelope is returned. Each entry pins a single
                              offending field

                              via JSON Pointer plus a sanitized detail string.
                            items:
                              type: object
                              title: Validation Error
                              description: A single field-level validation error.
                              properties:
                                pointer:
                                  type: string
                                  description: >-
                                    JSON Pointer (RFC 6901) to the offending
                                    field — e.g.

                                    `/steps/0/subject`.


                                    * An empty string (`""`) means the error
                                    applies to the whole
                                      request body (e.g. body is missing or unparseable).
                                    * For route or query parameter failures the
                                    pointer is the parameter
                                      name (e.g. `id`, `top`).
                                  example: /steps/0/subject
                                detail:
                                  type: string
                                  description: >-
                                    Sanitized, human-readable explanation of
                                    this field's error. One of a

                                    small set of templates — `"Field is
                                    required."`, `"Value has an

                                    invalid type."`, `"Value has an invalid
                                    format."`, `"Request body is

                                    not valid JSON."`, `"The request body is
                                    required and cannot be

                                    empty."` — or a FluentValidator message on
                                    body endpoints.
                                  example: Field is required.
                    title: Validation Problem
                    description: >-
                      Input-validation error response at 400. Returned when the
                      request body

                      fails binding, FluentValidator rules, or when route/query
                      parameter

                      attribute validation (`[Range]`, `[Required]`) fails.
                      Route, query, and

                      body errors are combined into a single `errors[]` array —
                      clients should

                      not assume one error per request.
                  - example:
                      title: Validation failed
                      status: 400
                      detail: The request body contains validation errors.
                      errors:
                        - pointer: /name
                          detail: Field is required.
              example:
                title: Validation failed
                status: 400
                detail: The request contains validation errors.
                errors:
                  - pointer: id
                    detail: The 'id' parameter must be a positive integer.
        '401':
          description: >-
            Unauthorized. The response body is empty; check the
            `WWW-Authenticate` header for the expected scheme.
          content:
            application/problem+json:
              schema:
                allOf:
                  - type: object
                    title: Problem Details
                    description: >-
                      Bare RFC 9457 problem-details envelope. Returned by
                      middleware-level errors

                      that don't carry domain context: 401 Unauthorized (auth
                      middleware),

                      429 Too Many Requests (rate-limit middleware), and
                      route-level 404 / 405 /

                      415 (framework middleware).


                      Business and validation responses extend this envelope and
                      add additional

                      fields — see `business-problem.model.yaml` (adds `code`
                      slug) and

                      `validation-problem.model.yaml` (adds `errors[]` array).
                    properties:
                      title:
                        type: string
                        description: Short, human-readable summary of the problem.
                      status:
                        type: integer
                        description: HTTP status code.
                        minimum: 100
                        maximum: 599
                      detail:
                        type: string
                        description: >-
                          Human-readable explanation specific to this
                          occurrence.
                  - example:
                      title: Unauthorized
                      status: 401
                      detail: Authentication credentials are missing or invalid.
        '404':
          description: Subscription not found, not owned by the caller, or disabled.
          content:
            application/problem+json:
              schema:
                allOf:
                  - allOf:
                      - type: object
                        title: Problem Details
                        description: >-
                          Bare RFC 9457 problem-details envelope. Returned by
                          middleware-level errors

                          that don't carry domain context: 401 Unauthorized
                          (auth middleware),

                          429 Too Many Requests (rate-limit middleware), and
                          route-level 404 / 405 /

                          415 (framework middleware).


                          Business and validation responses extend this envelope
                          and add additional

                          fields — see `business-problem.model.yaml` (adds
                          `code` slug) and

                          `validation-problem.model.yaml` (adds `errors[]`
                          array).
                        properties:
                          title:
                            type: string
                            description: Short, human-readable summary of the problem.
                          status:
                            type: integer
                            description: HTTP status code.
                            minimum: 100
                            maximum: 599
                          detail:
                            type: string
                            description: >-
                              Human-readable explanation specific to this
                              occurrence.
                      - type: object
                        properties:
                          code:
                            type: string
                            description: >-
                              Stable, machine-readable error slug in the form

                              `"<resource>.<variant>"`.


                              * `resource` is the camelCased domain — e.g.
                              `sequence`,
                                `contact`, `inboxThread`, `blacklistDomainRule`.
                              * `variant` is the camelCased specific failure
                              mode — e.g.
                                `notFound`, `forbidden`, `duplicateName`, `globalRuleReadOnly`.

                              Use `code` for programmatic error handling; use
                              `detail` for

                              user-facing messages. Slugs are stable across
                              server-side enum

                              reorderings and never change meaning under a given
                              resource.
                            pattern: ^[a-z][a-zA-Z0-9]*(\.[a-z][a-zA-Z0-9]*)+$
                            example: sequence.notFound
                    title: Business Problem
                    description: >-
                      Domain error response carrying a stable, namespaced error
                      slug.

                      Emitted for most 4xx responses (business 400, 403, 404,
                      409, …) and

                      for 503 when a downstream dependency is unavailable.
                  - example:
                      title: Not Found
                      status: 404
                      detail: The requested resource was not found.
                      code: sequence.notFound
              example:
                title: Not Found
                status: 404
                detail: Webhook subscription 1823 not found or disabled.
                code: webHook.notFound
        '429':
          description: Too Many Requests
          headers:
            Retry-After:
              description: Seconds to wait before retrying
              schema:
                type: integer
                minimum: 1
          content:
            application/problem+json:
              schema:
                allOf:
                  - type: object
                    title: Problem Details
                    description: >-
                      Bare RFC 9457 problem-details envelope. Returned by
                      middleware-level errors

                      that don't carry domain context: 401 Unauthorized (auth
                      middleware),

                      429 Too Many Requests (rate-limit middleware), and
                      route-level 404 / 405 /

                      415 (framework middleware).


                      Business and validation responses extend this envelope and
                      add additional

                      fields — see `business-problem.model.yaml` (adds `code`
                      slug) and

                      `validation-problem.model.yaml` (adds `errors[]` array).
                    properties:
                      title:
                        type: string
                        description: Short, human-readable summary of the problem.
                      status:
                        type: integer
                        description: HTTP status code.
                        minimum: 100
                        maximum: 599
                      detail:
                        type: string
                        description: >-
                          Human-readable explanation specific to this
                          occurrence.
              example:
                title: Too Many Requests
                status: 429
                detail: Rate limit exceeded. Retry after 60 seconds.
        '502':
          description: >-
            The webhook subscription is valid and the request was dispatched,
            but the target URL could

            not be reached or rejected the delivery. Causes include connection
            failures, TLS handshake

            errors, the target returning a 4xx or 5xx, or the request timing
            out. The subscription is

            left untouched — the integrator should fix the target endpoint and
            retry the test.
          content:
            application/problem+json:
              schema:
                allOf:
                  - allOf:
                      - type: object
                        title: Problem Details
                        description: >-
                          Bare RFC 9457 problem-details envelope. Returned by
                          middleware-level errors

                          that don't carry domain context: 401 Unauthorized
                          (auth middleware),

                          429 Too Many Requests (rate-limit middleware), and
                          route-level 404 / 405 /

                          415 (framework middleware).


                          Business and validation responses extend this envelope
                          and add additional

                          fields — see `business-problem.model.yaml` (adds
                          `code` slug) and

                          `validation-problem.model.yaml` (adds `errors[]`
                          array).
                        properties:
                          title:
                            type: string
                            description: Short, human-readable summary of the problem.
                          status:
                            type: integer
                            description: HTTP status code.
                            minimum: 100
                            maximum: 599
                          detail:
                            type: string
                            description: >-
                              Human-readable explanation specific to this
                              occurrence.
                      - type: object
                        properties:
                          code:
                            type: string
                            description: >-
                              Stable, machine-readable error slug in the form

                              `"<resource>.<variant>"`.


                              * `resource` is the camelCased domain — e.g.
                              `sequence`,
                                `contact`, `inboxThread`, `blacklistDomainRule`.
                              * `variant` is the camelCased specific failure
                              mode — e.g.
                                `notFound`, `forbidden`, `duplicateName`, `globalRuleReadOnly`.

                              Use `code` for programmatic error handling; use
                              `detail` for

                              user-facing messages. Slugs are stable across
                              server-side enum

                              reorderings and never change meaning under a given
                              resource.
                            pattern: ^[a-z][a-zA-Z0-9]*(\.[a-z][a-zA-Z0-9]*)+$
                            example: sequence.notFound
                    title: Business Problem
                    description: >-
                      Domain error response carrying a stable, namespaced error
                      slug.

                      Emitted for most 4xx responses (business 400, 403, 404,
                      409, …) and

                      for 503 when a downstream dependency is unavailable.
                  - example:
                      title: Bad Request
                      status: 400
                      detail: Pagination parameters are invalid.
                      code: sequence.invalidPagination
              examples:
                target_unreachable:
                  summary: Target URL unreachable (connection / DNS / timeout)
                  value:
                    title: Bad Gateway
                    status: 502
                    detail: 'Could not reach target URL: No such host is known.'
                    code: webHook.deliveryFailed
                target_returned_error:
                  summary: Target URL returned a non-2xx
                  value:
                    title: Bad Gateway
                    status: 502
                    detail: Target URL responded with status 503.
                    code: webHook.deliveryFailed
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Authenticate every request with a Bearer token. Pass your Reply API key
        in the

        `Authorization` header:


        ```

        Authorization: Bearer <your-api-key>

        ```


        Get your API key from the Reply dashboard: **Settings → API Key**.

````