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

# Update Group

> Update an affiliate group

Update an affiliate group. All fields are optional — only include the fields you want to change.

## Path Parameters

<ParamField path="id" type="string" required>
  The unique identifier of the group to update.
</ParamField>

## Body Parameters

<ParamField body="name" type="string">
  Group name. Must be between 1 and 255 characters.
</ParamField>

<ParamField body="description" type="string | null">
  Group description. Set to `null` to clear.
</ParamField>

<ParamField body="custom_website_url" type="string | null">
  Custom website URL. Must be a valid URL. Set to `null` to clear.
</ParamField>

<ParamField body="is_default" type="boolean">
  Set as the default group for new affiliates.
</ParamField>

## Response

Returns the updated group object. Same structure as items in the [List Groups](/api/endpoint/program/list-groups) response.

<RequestExample>
  ```bash cURL theme={null}
  curl -X PATCH "https://api.affonso.io/v1/program/groups/a1b2c3d4-e5f6-7890-abcd-ef1234567890" \
    -H "Authorization: Bearer sk_live_your_api_key" \
    -H "Content-Type: application/json" \
    -d '{
      "name": "VIP Partners",
      "description": "Top-tier affiliate partners"
    }'
  ```
</RequestExample>

<ResponseExample>
  ```json Response theme={null}
  {
    "success": true,
    "data": {
      "id": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
      "name": "VIP Partners",
      "description": "Top-tier affiliate partners",
      "custom_website_url": "https://partners.acme.com",
      "is_default": false,
      "created_at": "2024-03-01T12:00:00.000Z"
    }
  }
  ```
</ResponseExample>