> ## Documentation Index > Fetch the complete documentation index at: https://www.cometchat.com/docs/llms.txt > Use this file to discover all available pages before exploring further. > Adds multiple users as per the scope. # Add members For the complete error reference, see [Error Guide](/articles/error-guide). ## OpenAPI ````yaml post /groups/{guid}/members openapi: 3.0.0 info: title: Chat APIs description: Manage messages, users, groups for a particular app using our Chat API. version: '3.0' servers: - url: https://{appId}.api-{region}.cometchat.io/v3 variables: appId: default: appId description: (Required) App ID region: enum: - us - eu - in default: us description: Select Region security: [] tags: - name: API Keys description: The API keys are used to authorise the APIs - name: Roles description: The roles are used to give user access rights - name: Users description: The REST collection for users. - name: Auth Tokens description: The auth tokens are used to login end users using client SDKs. - name: Blocked Users description: The REST collections for blocked users. - name: Friends description: List,add and remove friends by passing UID in path variables - name: Groups description: The REST collections for groups. - name: Banned Users description: Ban and Unban user by passing other UID in path variables. - name: Group Members description: The REST collections for group members. - name: Messages description: The REST collections for messages. - name: Conversations description: The REST collections for conversations. - name: Restrict Features description: Allows Restricting Features - name: Metrics description: Allows accessing Data Metrics - name: Triggers description: Allows adding triggers to a webhook. - name: Webhooks description: Allows accessing Webhooks. - name: Notifications description: Allows configuring Notifications core. paths: /groups/{guid}/members: post: tags: - Group Members summary: Add members description: Adds multiple users as per the scope. operationId: add-group-members parameters: - $ref: '#/components/parameters/onBehalfOf' - $ref: '#/components/parameters/guid' requestBody: content: application/json: schema: properties: admins: description: UIDs of users to be made admins. type: array items: type: string default: [] moderators: description: UIDs of users to be made moderators. type: array items: type: string default: [] participants: description: UIDs of users to be made participants. type: array items: type: string default: [] usersToBan: description: UIDs of the users to be banned from the group. type: array items: type: string default: [] type: object responses: '200': description: Create Group Members content: application/json: schema: properties: data: type: object type: object example: data: usersToBan: cometchat-uid-6: success: true admins: cometchat-uid-1: success: true data: id: '32' conversationId: group_project-group sender: app_system receiverType: group receiver: project-group category: action type: groupMember data: action: added entities: by: entity: uid: app_system name: System role: default status: offline createdAt: 1596537299 entityType: user 'on': entity: uid: cometchat-uid-1 name: Andrew Joseph role: default avatar: >- https://assets.cometchat.io/sampleapp/v2/users/cometchat-uid-1.webp status: offline createdAt: 1596537299 entityType: user for: entity: guid: project-group icon: >- https://assets.cometchat.io/sampleapp/v2/groups/cometchat-guid-1.webp name: Project Group tags: - friends - project type: public owner: cometchat-uid-2 createdAt: 1625460947 description: project related discussions between members membersCount: 2 conversationId: group_project-group entityType: group sentAt: 1625460972 updatedAt: 1625460972 moderators: cometchat-uid-3: success: true data: id: '33' conversationId: group_project-group sender: app_system receiverType: group receiver: project-group category: action type: groupMember data: action: added entities: by: entity: uid: app_system name: System role: default status: offline createdAt: 1596537299 entityType: user 'on': entity: uid: cometchat-uid-3 name: Nancy Grace role: default avatar: >- https://assets.cometchat.io/sampleapp/v2/users/cometchat-uid-3.webp status: offline createdAt: 1596537299 updatedAt: 1625234590 entityType: user for: entity: guid: project-group icon: >- https://assets.cometchat.io/sampleapp/v2/groups/cometchat-guid-1.webp name: Project Group tags: - friends - project type: public owner: cometchat-uid-2 createdAt: 1625460947 updatedAt: 1625460972 description: project related discussions between members membersCount: 3 conversationId: group_project-group entityType: group sentAt: 1625460973 updatedAt: 1625460973 participants: cometchat-uid-4: success: true data: id: '34' conversationId: group_project-group sender: app_system receiverType: group receiver: project-group category: action type: groupMember data: action: added entities: by: entity: uid: app_system name: System role: default status: offline createdAt: 1596537299 entityType: user 'on': entity: uid: cometchat-uid-4 name: Susan Marie role: default avatar: >- https://assets.cometchat.io/sampleapp/v2/users/cometchat-uid-4.webp status: offline createdAt: 1596537299 entityType: user for: entity: guid: project-group icon: >- https://assets.cometchat.io/sampleapp/v2/groups/cometchat-guid-1.webp name: Project Group tags: - friends - project type: public owner: cometchat-uid-2 createdAt: 1625460947 updatedAt: 1625460973 description: project related discussions between members membersCount: 4 conversationId: group_project-group entityType: group sentAt: 1625460973 updatedAt: 1625460973 cometchat-uid-5: success: true data: id: '35' conversationId: group_project-group sender: app_system receiverType: group receiver: project-group category: action type: groupMember data: action: added entities: by: entity: uid: app_system name: System role: default status: offline createdAt: 1596537299 entityType: user 'on': entity: uid: cometchat-uid-5 name: John Paul role: default avatar: >- https://assets.cometchat.io/sampleapp/v2/users/cometchat-uid-5.webp status: offline createdAt: 1596537299 entityType: user for: entity: guid: project-group icon: >- https://assets.cometchat.io/sampleapp/v2/groups/cometchat-guid-1.webp name: Project Group tags: - friends - project type: public owner: cometchat-uid-2 createdAt: 1625460947 updatedAt: 1625460973 description: project related discussions between members membersCount: 5 conversationId: group_project-group entityType: group sentAt: 1625460973 updatedAt: 1625460973 security: - apiKey: [] components: parameters: onBehalfOf: name: onBehalfOf in: header description: UID of the user on whose behalf the action is performed. schema: type: string guid: name: guid in: path description: A GUID of a group. required: true schema: type: string examples: string: summary: GUID value: cometchat-guid-1 securitySchemes: apiKey: type: apiKey description: API Key with fullAccess scope(i.e. Rest API Key from the Dashboard). name: apikey in: header ````