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

# Assign contacts to groups

> Assign multiple contacts to multiple groups. **Important:** This operation overwrites existing group assignments for the specified contacts - it does not append to them. Contacts will be unassigned from any group that's not included in this list (Permitted scopes: **fax:all:edit**)

<RequestExample>
  ```js NodeJS SDK theme={null}
  const axios = require('axios');
  const ContactsApiFp = require('@alohi/faxplus-api').ContactsApiFp;
  const Configuration = require('@alohi/faxplus-api').Configuration;

  const config = new Configuration({
      accessToken: accessToken,
      basePath: 'https://restapi.fax.plus/v3',
      baseOptions: {
          headers: {
            "x-fax-clientid": clientId,
          }
      }
  });

  async function associateContactGroups() {
      const associateData = {
          contact_id: 'contact_123',
          group_ids: ['group_456', 'group_789']
      };
      const req = await ContactsApiFp(config).associateContactGroups({
          userId: 'self',
          body: associateData
      });
      const resp = await req(axios);
  }

  associateContactGroups()
  ```

  ```python Python SDK theme={null}
  from faxplus import ApiClient, ContactsApi
  from faxplus.configuration import Configuration

  conf = Configuration()
  conf.access_token = access_token
  api_client = ApiClient(header_name='x-fax-clientid', header_value=client_id, configuration=conf)
  api = ContactsApi(api_client)

  associate_data = {
      'contact_id': 'contact_123',
      'group_ids': ['group_456', 'group_789']
  }

  resp = api.associate_contact_groups(user_id='self', body=associate_data)
  ```

  ```bash cURL theme={null}
  curl -X POST https://restapi.fax.plus/v3/accounts/self/contacts/assign-groups \
    -H 'Content-Type: application/json' \
    -H 'Accept: application/json'  \
    -H 'Authorization: Bearer {access-token}' \
    -H 'x-fax-clientid: "YOUR_CLIENT_ID"' \
    -d '{
      "contact_id": "contact_123",
      "group_ids": ["group_456", "group_789"]
    }'
  ```
</RequestExample>


## OpenAPI

````yaml post /accounts/self/contacts/assign-groups
openapi: 3.0.1
info:
  title: Fax.Plus REST API
  description: >-
    This is the Fax.Plus API v3 developed for third party developers and
    organizations. In order to have a better coding experience with this API,
    let's quickly go through some points:<br /><br /> - This API assumes
    **/accounts** as an entry point with the base url of
    **https://restapi.fax.plus/v3**. <br /><br /> - This API treats all date and
    times sent to it in requests as **UTC**. Also, all dates and times returned
    in responses are in **UTC**<br /><br /> - Once you have an access_token, you
    can easily send a request to the resource server with the base url of
    **https://restapi.fax.plus/v3** to access your permitted resources. As an
    example to get the user's profile info you would send a request to
    **https://restapi.fax.plus/v3/accounts/self** when **Authorization** header
    is set to **Bearer YOUR_ACCESS_TOKEN** and custom header of
    **x-fax-clientid** is set to YOUR_CLIENT_ID
  version: 3.4.0
  contact:
    name: Fax.Plus
    email: info@fax.plus
    url: https://github.com/alohi
servers:
  - url: https://restapi.fax.plus/v3
  - url: /v3
security: []
paths:
  /accounts/self/contacts/assign-groups:
    post:
      tags:
        - Contacts
      summary: Assign contacts to groups
      description: >-
        Assign multiple contacts to multiple groups. **Important:** This
        operation overwrites existing group assignments for the specified
        contacts - it does not append to them. Contacts will be unassigned from
        any group that's not included in this list (Permitted scopes:
        **fax:all:edit**)
      operationId: associateTags
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                groups:
                  type: array
                  items:
                    type: string
                  description: >-
                    Array of group IDs to assign to the contacts. This
                    overwrites existing group assignments - contacts will be
                    unassigned from any group that's not included in this list
                contact_ids:
                  type: array
                  items:
                    type: string
                  description: Array of contact IDs to assign to the specified groups
                shared:
                  type: boolean
                  default: false
                  description: >-
                    If true, operate on shared/corporate contacts and groups. If
                    false, operate on personal contacts and groups
              required:
                - contact_ids
      responses:
        '200':
          description: Groups associated successfully
          content:
            application/json:
              schema:
                type: object
        '400':
          $ref: '#/components/responses/Error'
        '401':
          $ref: '#/components/responses/UnauthorizedError'
        '500':
          $ref: '#/components/responses/ServerError'
      security:
        - personal_access_token:
            - fax:all:edit
        - oauth2:
            - all
components:
  responses:
    Error:
      description: Error object in case there's a problem with given data
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error: invalid_user_id
            description: Invalid user id given
    UnauthorizedError:
      description: Error object in case there's a problem with the authorization
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error: unauthorized
            description: >-
              The access token provided is expired, revoked, malformed, or
              invalid for other reasons.
    ServerError:
      description: Error object in case there's a server error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error: internal_server_error
            description: An unexpected error happened, please contact support
  schemas:
    Error:
      properties:
        description:
          type: string
        error:
          type: string
      additionalProperties: false
  securitySchemes:
    personal_access_token:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >-
        Personal Access Token (PAT) is a Bearer token used for secure API calls.
        For direct API calls, the PAT is used in the Authorization header as
        'Bearer {PAT}'. For MCP usage, configure your PAT in your MCP client
        settings (e.g., in your IDE's MCP server configuration) - authentication
        will be handled automatically.
    oauth2:
      type: oauth2
      description: OAuth2 Authorization Grant
      flows:
        authorizationCode:
          authorizationUrl: >-
            https://accounts.fax.plus/login?response_type=code&client_id=YOUR_CLIENT_ID&redirect_uri=http://localhost&scope=all
          tokenUrl: https://accounts.fax.plus/token
          refreshUrl: >-
            https://accounts.fax.plus/token?grant_type=refresh_token&refresh_token=YOUR_REFRESH_TOKEN
          scopes:
            all: >-
              for now when a user grants permission, all grants will be
              permitted

````