---
title: "Assign model role to user group"
method: POST
path: "/api/v1/user-groups/{id}/model-roles"
tags: ["Users"]
---

# Assign model role to user group

`POST /api/v1/user-groups/{id}/model-roles`

## Path parameters

- `id` string, required — User group short identifier (miniUuid)

## Request body

- UserGroupsAssignModelRoleBody
  - `connectionId` string, uuid — Connection ID for connection-level role assignment. Required if modelId not provided.
  - `modelId` string, uuid — Model ID for model-level role assignment. Required if connectionId not provided.
  - `roleName` string, required — Name of the role to assign (base or custom role)

## Response `200`

Role assigned successfully

- UserGroupsAssignModelRoleResponse
  - `connectionId` string, uuid, required — The connection ID for this role assignment
  - `modelId` string, uuid, required — The model ID for this role assignment
  - `roleName` string, required — The assigned role name
  - `userGroupId` string, required — The user group short identifier

## Other responses

- `400` — Invalid request - connectionId or modelId required
- `401` — Authentication required
- `403` — Permission denied - admin role required
- `404` — User group, model, or connection not found

---

[API](https://skmtc.net/omniapp/apis/omni-api.md) · [All operations](https://skmtc.net/omniapp/apis/omni-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/omniapp/omni-api/versions/4701f292c621/schema)