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

<AgentInstructions>

## Submitting Feedback

If you encounter incorrect, outdated, or confusing documentation on this page, submit feedback:

POST https://docs.omni.co/feedback

```json
{
  "path": "/api/user-model-roles/assign-or-update-user-model-role",
  "feedback": "Description of the issue"
}
```

Only submit feedback when you have something specific and actionable to report.

</AgentInstructions>

# Assign or update user model role

> Assigns or updates a model role for a user. If the user already has a role for the specified model, this endpoint will update it to the new role.

Model roles control what actions a user can perform on models and connections. To manage users, see the [User APIs](/api/users).




## OpenAPI

````yaml /api/openapi.yaml post /v1/users/{userId}/model-roles
openapi: 3.1.0
info:
  title: Omni API
  description: >
    The Omni REST API provides programmatic access to your Omni instance for
    managing users, documents, queries, schedules, and more.  
  version: 1.0.0
  contact:
    name: Omni Support
    url: https://docs.omni.co
servers:
  - url: https://{instance}.omniapp.co/api
    description: Production
    variables:
      instance:
        default: blobsrus
        description: Your production Omni instance subdomain
  - url: https://{instance}.playground.exploreomni.dev/api
    description: Playground
    variables:
      instance:
        default: blobsrus
        description: Your playground Omni instance subdomain
security:
  - bearerAuth: []
  - orgApiKey: []
tags:
  - name: AI
    description: AI-powered query generation
  - name: API Tokens
    description: >-
      Manage API tokens (Organization keys, Personal Access Tokens, MCP OAuth
      grants)
  - name: Connections
    description: Manage database connections
  - name: Connection environments
    description: Manage connection environments database connections
  - name: Content
    description: Unified content retrieval (documents and folders)
  - name: Content migration
    description: Export and import dashboards
  - name: Content validator
    description: Validate content against models and perform find/replace operations
  - name: Dashboard downloads
    description: Download dashboards and tiles as PDF, PNG, XLSX, CSV, or JSON files
  - name: Dashboard filters and controls
    description: Read and update dashboard filter and control default values
  - name: dbt
    description: Manage dbt configuration for connections
  - name: Documents
    description: Create, retrieve, and manage documents
  - name: Document favorites
    description: Favorite and unfavorite documents
  - name: Document labels
    description: Apply and manage labels on documents
  - name: Document permissions
    description: Manage document-level access
  - name: Labels
    description: >
      Manage labels in an organization. Labels can be applied to documents and
      folders to help organize and categorize content.


      **Label types:**

      - **Basic labels**: Can be created and managed by any user

      - **Verified labels**: Indicate curated or officially sanctioned content.
      Admin-only.

      - **Homepage labels**: Appear on the organization homepage. Admin-only.
  - name: Folders
    description: Create and organize content folders
  - name: Folder permissions
    description: Manage folder-level access
  - name: Jobs
    description: Check status of asynchronous jobs
  - name: Models
    description: Create and manage data models
  - name: Model branches
    description: Manage model branches and merge changes
  - name: Model git configuration
    description: Manage git configuration for shared models
  - name: Queries
    description: Execute workbook queries
  - name: Schedules
    description: Create and manage scheduled tasks
  - name: Schedule recipients
    description: Manage schedule recipients
  - name: Schema refresh schedules
    description: Manage automated schema refresh schedules for connections
  - name: Topics
    description: Retrieve topic information from models
  - name: Uploads
    description: Manage file uploads
  - name: Users
    description: Manage users
  - name: User attributes
    description: Manage user attribute definitions
  - name: User groups
    description: Manage user groups
  - name: User model roles
    description: Manage model and connection role assignments for users
  - name: User group model roles
    description: Manage model and connection role assignments for user groups
  - name: Uploads
    description: Manage CSV and spreadsheet uploads
paths:
  /v1/users/{userId}/model-roles:
    post:
      tags:
        - User model roles
      summary: Assign or update user model role
      description: >
        Assigns or updates a model role for a user. If the user already has a
        role for the specified model, this endpoint will update it to the new
        role.


        Model roles control what actions a user can perform on models and
        connections. To manage users, see the [User APIs](/api/users).
      operationId: assignUserModelRole
      parameters:
        - name: userId
          in: path
          required: true
          schema:
            type: string
            format: uuid
          description: The ID of the user to assign or update a model role for.
          example: 9e8719d9-276a-4964-9395-a493189a247c
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - roleName
              properties:
                connectionId:
                  type: string
                  format: uuid
                  description: >
                    The ID of the connection that the model belongs to:


                    - **Required** if `modelId` is not provided

                    - **Optional** if `modelId` is provided, in which case it
                    will be inferred from the model
                modelId:
                  type: string
                  format: uuid
                  description: >
                    The ID of the model to assign the role for:


                    - **Optional** when assigning `CONNECTION_ADMIN` or [custom
                    roles](/administration/users/custom-roles) with
                    `CONNECTION_ADMIN` as the base role

                    - **Required** for other role types
                roleName:
                  type: string
                  description: >
                    The role to assign. Available roles include:


                    - `VIEWER` - Can view the model

                    - `QUERIER` - Can view and query the model

                    - `QUERY_TOPICS` - Can query specific topics. Equivalent to
                    **Restricted Querier**.

                    - `MODELER` - Can edit and model the data

                    - `CONNECTION_ADMIN` - Full administrative access to the
                    connection

                    - `NO_ACCESS` - No access to the model

                    - [Custom roles](/administration/users/custom-roles) defined
                    for your organization
            example:
              connectionId: bc1f9c9f-208d-48a2-9ae3-ff80f2c79fed
              modelId: 7d3e4f5a-6b7c-8d9e-0f1a-2b3c4d5e6f7a
              roleName: QUERIER
      responses:
        '200':
          description: Model role assigned or updated successfully.
          content:
            application/json:
              schema:
                type: object
                properties:
                  userId:
                    type: string
                    format: uuid
                    description: The ID of the user.
                  connectionId:
                    type: string
                    format: uuid
                    description: The ID of the connection.
                  modelId:
                    type: string
                    format: uuid
                    description: The ID of the model.
                  roleName:
                    type: string
                    description: The assigned role name.
              example:
                userId: 9e8719d9-276a-4964-9395-a493189a247c
                connectionId: bc1f9c9f-208d-48a2-9ae3-ff80f2c79fed
                modelId: 7d3e4f5a-6b7c-8d9e-0f1a-2b3c4d5e6f7a
                roleName: QUERIER
        '400':
          description: |
            Bad Request. Possible error messages include:

            - `Invalid JSON`
            - `Invalid model ID`
            - `Invalid connection ID`
            - `Method not allowed`
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: |
            Not Found. Possible error messages include:

            - `User not found in organization`
            - `Model does not exist`
            - `Connection does not exist`
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '422':
          description: >
            Unprocessable Entity. Possible error messages include:


            - `Invalid role`

            - `Model does not belong to connection`

            - `Only shared and shared_extension models can be assigned model
            roles`
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          $ref: '#/components/responses/TooManyRequests'
      security:
        - bearerAuth: []
components:
  schemas:
    Error:
      type: object
      properties:
        error:
          type: string
          description: HTTP response code for the error
          example: <response_code>
        message:
          type: string
          description: Detailed error description
          example: <error_reason>
  responses:
    TooManyRequests:
      description: Too Many Requests - Rate limit exceeded (60 requests/minute)
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >
        Can be either an [Organization API
        Key](/api/authentication#organization-api-keys) or [Personal Access
        Token (PAT)](/api/authentication#personal-access-tokens-pat).


        Include in the `Authorization` header as: `Bearer YOUR_TOKEN`
    orgApiKey:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: >
        Requires an [Organization API
        Key](/api/authentication#organization-api-keys). Personal Access Tokens
        (PATs) are not supported for this endpoint.


        Include in the `Authorization` header as: `Bearer ORGANIZATION_API_KEY`

````