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

# Create a sub-entity under the caller's umbrella organization

> Creates a new managed child organization. When the key carries a user, that user becomes the owner. HIPAA is opt-in per sub-entity via PATCH, so the new sub-entity starts HIPAA-disabled.



## OpenAPI

````yaml /openapi.json post /v1/sub-entities
openapi: 3.1.0
info:
  title: LumisReach v1 API
  version: 1.0.0
  description: >-
    Programmatic access to the LumisReach voice platform — calls, numbers,
    caller trust, and brands.
  contact:
    name: LumisReach
    email: founders@lumisreach.com
servers:
  - url: https://api.lumisreach.com/api
security:
  - bearerAuth: []
tags:
  - name: Contacts
  - name: Calls
  - name: Messages
  - name: Emails
  - name: Phone Numbers
  - name: Caller IDs
  - name: Enterprise Registration
  - name: Branded Calling
  - name: Dialer Calls
  - name: SMS
  - name: WebRTC
  - name: Reputation
  - name: Usage
  - name: Account
  - name: Billing
  - name: Documents
  - name: Lincoln AI
  - name: Quick Agent Actions
  - name: Sub-entities
  - name: Video schedules
  - name: Videos
paths:
  /v1/sub-entities:
    post:
      tags:
        - Sub-entities
      summary: Create a sub-entity under the caller's umbrella organization
      description: >-
        Creates a new managed child organization. When the key carries a user,
        that user becomes the owner. HIPAA is opt-in per sub-entity via PATCH,
        so the new sub-entity starts HIPAA-disabled.
      operationId: v1_sub_entities_post
      parameters:
        - name: Idempotency-Key
          in: header
          required: false
          description: >-
            A UUID. When present, deduplicates repeat submissions. See
            /api-reference/idempotency.
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $schema: http://json-schema.org/draft-07/schema#
              type: object
              properties:
                name:
                  type: string
                  minLength: 1
                  maxLength: 128
                slug:
                  type: string
                  pattern: ^[a-z0-9-]{1,64}$
              required:
                - name
              additionalProperties: false
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                $schema: http://json-schema.org/draft-07/schema#
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      id:
                        type: string
                        format: uuid
                        pattern: >-
                          ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
                      name:
                        type: string
                      slug:
                        type:
                          - string
                          - 'null'
                      parent_organization_id:
                        type: string
                        format: uuid
                        pattern: >-
                          ^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$
                      hipaa_enabled:
                        type: boolean
                      member_count:
                        type: number
                      phone_number_count:
                        type: number
                      created_at:
                        type: string
                    required:
                      - id
                      - name
                      - slug
                      - parent_organization_id
                      - hipaa_enabled
                      - member_count
                      - phone_number_count
                      - created_at
                    additionalProperties: false
                required:
                  - data
                additionalProperties: false
        '400':
          description: Validation error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '403':
          description: Forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '404':
          description: Not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '409':
          description: Conflict (incl. idempotency conflicts)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
        '429':
          description: Rate limited
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorEnvelope'
components:
  schemas:
    ErrorEnvelope:
      type: object
      properties:
        error:
          type: object
          required:
            - code
            - message
          properties:
            code:
              type: string
            message:
              type: string
            fields:
              type: object
              additionalProperties:
                type: string
            doc_url:
              type: string
              format: uri
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer

````