> ## Documentation Index > Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt > Use this file to discover all available pages before exploring further. # Create a Group > Creates a group. `name` is the identifier you will address it by everywhere else — it is NOT a generated UUID, and it cannot be changed afterwards; `displayName` is the label people see and can be changed at any time. A new group is empty and grants nothing. Add people with `POST /v1/groups/{id}/users` and grant it roles with `POST /v1/roles/{id}/groups`; until both happen the group has no effect on anyone's access. Failures: - `400` — a required member is missing. - `409` — a group with that `name` already exists in your organization. - `503 IDE-0066` — the identity provider is unavailable (unreachable, too slow to answer, or failing). Nothing about the request was wrong; retry it later. ## OpenAPI ````yaml /en/openapi/v3-current/AM-identity.yaml post /v1/groups openapi: 3.1.0 info: contact: name: Lerian Studio url: https://lerian.studio description: OpenAPI 3.1 surface for the Access Manager identity component. license: name: Lerian Studio General License title: Plugin Access Manager — Identity API version: v1 servers: - url: https://identity.sandbox.lerian.net security: [] tags: - description: >- M2M-only: each plugin declares its own permissions, roles and M2M contract, and the server reconciles them. name: Declarations - description: >- A tenant administrator's customers. Each partner holds what its credentials may DO (permissions, per product) and WHERE they may do it (scope, per product and dimension); an M2M application attached to one is confined to that intersection. Administrator-only: authorized on the "partners" resource, and every route resolves the owning organization from the caller's token. name: Partners paths: /v1/groups: post: tags: - Groups summary: Create a Group description: >- Creates a group. `name` is the identifier you will address it by everywhere else — it is NOT a generated UUID, and it cannot be changed afterwards; `displayName` is the label people see and can be changed at any time. A new group is empty and grants nothing. Add people with `POST /v1/groups/{id}/users` and grant it roles with `POST /v1/roles/{id}/groups`; until both happen the group has no effect on anyone's access. Failures: - `400` — a required member is missing. - `409` — a group with that `name` already exists in your organization. - `503 IDE-0066` — the identity provider is unavailable (unreachable, too slow to answer, or failing). Nothing about the request was wrong; retry it later. operationId: createGroup requestBody: content: application/json: schema: $ref: '#/components/schemas/GroupInput' description: The group to create. required: true responses: '201': content: application/json: schema: $ref: '#/components/schemas/GroupFullResponse' description: Created '400': content: application/json: schema: $ref: '#/components/schemas/HTTPError' description: Bad Request '409': content: application/json: schema: $ref: '#/components/schemas/HTTPError' description: Conflict '422': content: application/problem+json: schema: $ref: '#/components/schemas/Detail' description: Unprocessable Entity '500': content: application/json: schema: $ref: '#/components/schemas/HTTPError' description: Internal Server Error '503': content: application/json: schema: $ref: '#/components/schemas/HTTPError' description: Service Unavailable security: - BearerAuth: [] components: schemas: GroupInput: additionalProperties: false properties: contactEmail: examples: - team@example.com type: string displayName: examples: - Custom Group type: string name: examples: - custom-group type: string required: - name - displayName type: object GroupFullResponse: additionalProperties: false properties: contactEmail: examples: - admin@example.com type: string createdAt: examples: - '2026-01-01T00:00:00Z' type: string id: examples: - my-group type: string isEnabled: examples: - true type: boolean isTopGroup: examples: - false type: boolean manager: examples: - admin type: string name: examples: - My Group type: string parentId: examples: - parent-group type: string type: examples: - custom type: string updatedAt: examples: - '2026-06-24T10:00:00Z' type: string users: examples: - - user1 - user2 items: type: string type: array type: object HTTPError: additionalProperties: false properties: code: type: string entityType: type: string err: {} message: type: string title: type: string type: object Detail: additionalProperties: true properties: code: description: >- Stable, machine-readable domain error code scoped to the emitting service (format: -NNNN). type: string detail: description: >- A human-readable explanation specific to this occurrence of the problem. examples: - Property foo is required but is missing. type: string errors: description: Optional list of individual error details items: $ref: '#/components/schemas/ErrorDetail' type: - array - 'null' instance: description: >- A URI reference that identifies the specific occurrence of the problem. examples: - https://example.com/error-log/abc123 format: uri type: string status: description: HTTP status code examples: - 400 format: int64 type: integer title: description: >- A short, human-readable summary of the problem type. This value should not change between occurrences of the error. examples: - Bad Request type: string type: default: about:blank description: A URI reference to human-readable documentation for the error. examples: - https://example.com/errors/example format: uri type: string upstream: $ref: '#/components/schemas/Upstream' description: >- RFC 9457 extension member: the error a proxied third-party provider reported. Absent unless the emitting service explicitly surfaced one. type: object ErrorDetail: additionalProperties: false properties: location: description: >- Where the error occurred, e.g. 'body.items[3].tags' or 'path.thing-id' type: string message: description: Error message text type: string value: description: The value at the given location type: object Upstream: additionalProperties: false properties: code: description: The upstream provider's own error code, verbatim. examples: - E4001 type: string message: description: >- The upstream provider's own error message, verbatim (bounded, never its raw response body). examples: - account not found at provider type: string type: object securitySchemes: BearerAuth: bearerFormat: JWT description: JWT bearer token issued by the identity provider. scheme: bearer type: http ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.