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

# Add a number from the same account

> The same call as `POST` to `numbers`. Connects another number of the WhatsApp Business Account that is connected already. Answers 201. Needs the `channels:write` scope.



## OpenAPI

````yaml /openapi/partner.yaml post /api/v1/partner/tenants/{external_ref}/channels/whatsapp/numbers/adopt/
openapi: 3.1.0
info:
  title: ImpelLabs Partner API
  version: '1'
  description: >-
    The Partner API provisions customer businesses (tenants) and runs their
    channels, conversations and templates from your own product. Call it from
    your server with a partner key. Every path ends with a slash.
servers:
  - url: https://api.impellabs.tech
security:
  - bearer: []
tags:
  - name: Keys
    description: Your partner API keys.
  - name: Tenants
    description: Customer businesses, their channels, conversations and templates.
  - name: Webhooks
    description: Where your tenants' events go.
  - name: WhatsApp sign-up
    description: The settings of the hosted WhatsApp sign-up.
paths:
  /api/v1/partner/tenants/{external_ref}/channels/whatsapp/numbers/adopt/:
    post:
      tags:
        - Tenants
      summary: Add a number from the same account
      description: >-
        The same call as `POST` to `numbers`. Connects another number of the
        WhatsApp Business Account that is connected already. Answers 201. Needs
        the `channels:write` scope.
      operationId: post_api_v1_partner_tenants_external_ref_channels_whatsapp_numbers_adopt
      parameters:
        - name: external_ref
          in: path
          required: true
          schema:
            type: string
          description: Your own id for the customer business, set when you created it.
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                phone_number_id:
                  type: string
                  description: The number id from `available-numbers`.
              required:
                - phone_number_id
            example:
              phone_number_id: '100000000000002'
        required: true
      responses:
        '201':
          description: Success
          content:
            application/json:
              example:
                phone_number_id: '100000000000001'
                display_phone_number: +1 555 010 0100
                verified_name: Acme Dental
                waba_id: '200000000000001'
                status: active
                is_primary: true
                activated: true
                coexistence: false
                settings:
                  read_receipts: true
                  typing_indicator: true
                  rich_blocks: true
                  reply_wait_seconds: 0
                created_at: '2026-01-15T09:30:00+00:00'
                activated_at: '2026-01-15T10:00:00+00:00'
                payment_method_linked: true
                can_send_message: null
                problems: []
        '400':
          $ref: '#/components/responses/Invalid'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
        '404':
          $ref: '#/components/responses/NotFound'
        4XX:
          description: The request is not valid or not allowed
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  responses:
    Invalid:
      description: >-
        A field is missing or wrong. The body names each field: {"field": "what
        to fix"}.
    Unauthorized:
      description: The credentials are missing, wrong, expired or revoked.
    Forbidden:
      description: These credentials may not do this.
    NotFound:
      description: There is no such row, or these credentials cannot see it.
  schemas:
    Error:
      type: object
      description: >-
        An error. Most errors carry `detail`. Some carry `error` with `code` and
        `message`.
      properties:
        detail:
          type: string
        code:
          type: string
        field:
          type: string
        error:
          type: object
          properties:
            code:
              type: string
            message:
              type: string
  securitySchemes:
    bearer:
      type: http
      scheme: bearer

````

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