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

# Update Group

> Update a group.



## OpenAPI

````yaml /api-reference/openapi.json patch /api/v1/contacts/groups/{group_id}
openapi: 3.1.0
info:
  title: wazzapi Public API
  description: >-
    Public API surface for external API-key clients. Only stable /api/v1
    endpoints are included.


    ## Webhook deliveries

    This reference also includes the webhook requests Wazzapi sends to your
    endpoint for incoming messages, message status updates, and device status
    changes. See the `Incoming webhooks` section in the sidebar for headers,
    payload fields, and concrete examples.
  version: 1.0.0
servers: []
security: []
tags:
  - name: Incoming webhooks
    description: >-
      POST deliveries that Wazzapi sends to your webhook endpoint after you
      subscribe to supported events. Verify the signature against the raw body
      and return a 2xx response quickly.
paths:
  /api/v1/contacts/groups/{group_id}:
    patch:
      tags:
        - contacts
      summary: Update Group
      description: Update a group.
      operationId: update_group_api_v1_contacts_groups__group_id__patch
      parameters:
        - name: group_id
          in: path
          required: true
          schema:
            type: string
            format: uuid
            title: Group Id
        - name: Authorization
          in: header
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            title: Authorization
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ContactGroupUpdateRequest'
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ContactGroupItem'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    ContactGroupUpdateRequest:
      properties:
        name:
          anyOf:
            - type: string
              maxLength: 255
              minLength: 1
            - type: 'null'
          title: Name
        description:
          anyOf:
            - type: string
              maxLength: 1000
            - type: 'null'
          title: Description
      type: object
      title: ContactGroupUpdateRequest
      description: Request to update a group.
    ContactGroupItem:
      properties:
        id:
          type: string
          format: uuid
          title: Id
        name:
          type: string
          title: Name
        description:
          anyOf:
            - type: string
            - type: 'null'
          title: Description
        member_count:
          type: integer
          title: Member Count
        created_at:
          type: string
          title: Created At
      type: object
      required:
        - id
        - name
        - member_count
        - created_at
      title: ContactGroupItem
      description: Contact group list item.
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError

````