# Add member to group

Adds one or more users to a user group. Idempotent — adding an existing member succeeds silently.

Request:
groupId    - ID of the user group to add members to.
userIds    - List of user IDs to add to the group.

Response:
userIds    - List of user IDs that were successfully added.

Endpoint: POST /api/v1/user-group/user-group-add-member
Version: 3.0
Security: bearerAuth

## Request fields (application/json):

  - `groupId` (string)
    Rule data fields

  - `userIds` (array)

## Response 200 fields (application/json):

  - `userIds` (array)

## Response 400 fields (application/json):

  - `message` (string)

## Response 401 fields (application/json):

  - `message` (string)

## Response 403 fields (application/json):

  - `message` (string)

## Response 404 fields (application/json):

  - `message` (string)

## Response 409 fields (application/json):

  - `message` (string)

## Response 429 fields (application/json):

  - `message` (string)

## Response 499 fields (application/json):

  - `message` (string)

## Response 500 fields (application/json):

  - `message` (string)

## Response 501 fields (application/json):

  - `message` (string)

## Response 503 fields (application/json):

  - `message` (string)

## Response 504 fields (application/json):

  - `message` (string)