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

# Edit the body and/or scheduled_at of a scheduled message (Twilio Message.update parity)

> Twilio-parity edit of a still-scheduled message body and/or scheduled_at. The DB conditional UPDATE gates on `status='scheduled'` so an edit cannot race the scheduler dequeueing the row. Returns 409 MESSAGE_NOT_EDITABLE when the row is past the scheduled gate (queued / sending / sent / failed / cancelled) or does not exist. No billing side-effect — billing is debited on the send-path AFTER the scheduler picks the row up, so the new body is what gets accounted for + dispatched. At least one of `body` or `scheduled_at` must be supplied; `scheduled_at` is bounded to the same 35-day future horizon as the create path.



## OpenAPI

````yaml /openapi.yaml patch /api/v1/messages/{id}
openapi: 3.1.0
info:
  title: Devotel CPaaS API
  description: Orbit by Devotel — Communications Platform as a Service API
  version: 1.0.0
  contact:
    name: Devotel
    url: https://devotel.io
    email: support@devotel.io
  license:
    name: Proprietary
servers:
  - url: https://api.orbit.devotel.io
    description: Production
security:
  - Bearer: []
  - ApiKey: []
tags:
  - name: Messages
    description: >-
      Send and manage messages across all channels (SMS, WhatsApp, RCS, Email,
      Viber, etc.)
  - name: Fax
    description: >-
      List and track fax (MMS/T.38) transmissions on Telnyx-backed fax numbers
      (sending flows through the Messaging API)
  - name: Agents
    description: AI agent creation, configuration, and execution
  - name: Voice
    description: Voice calls, IVR, conferencing, and SIP trunking
  - name: OnCall
    description: On-call rotations and escalation policy planning for incident alerting
  - name: Webhooks
    description: Webhook endpoint management and delivery logs
  - name: Numbers
    description: Phone number search, provisioning, and configuration
  - name: Brand Identity
    description: >-
      Unified cross-channel brand trust posture (10DLC, toll-free, WhatsApp,
      RCS, branded calling, number KYC)
  - name: Contacts
    description: Contact management, segmentation, and lifecycle tracking
  - name: Campaigns
    description: Marketing campaign orchestration and analytics
  - name: Flows
    description: Automation flow builder and execution engine
  - name: Templates
    description: Message template management and approval workflows
  - name: Settings
    description: Organization, channel, and user preference settings
  - name: Verify
    description: OTP generation and verification across channels
  - name: Push
    description: Push notification delivery via FCM and APNs
  - name: Integrations
    description: Third-party service connections and OAuth management
  - name: CDP
    description: >-
      Customer Data Platform — activation surface (CRM object sync, streaming
      destinations, ad-audience activation)
  - name: Files
    description: >-
      Server-to-server media upload, listing, retrieval, and deletion
      (signed-URL backed)
  - name: Commerce
    description: >-
      Omnichannel conversational-commerce — persistent cart + checkout state
      machine, channel-agnostic hosted pay-by-link, native WhatsApp checkout,
      and AP2-style agent payment mandates.
  - name: Sync
    description: >-
      Real-time shared-state primitive (Twilio Sync parity) — Documents, Maps,
      Lists, and ephemeral Streams, with change events relayed over the
      /api/v1/ws/sync WebSocket gateway
paths:
  /api/v1/messages/{id}:
    patch:
      tags:
        - Messages
      summary: >-
        Edit the body and/or scheduled_at of a scheduled message (Twilio
        Message.update parity)
      description: >-
        Twilio-parity edit of a still-scheduled message body and/or
        scheduled_at. The DB conditional UPDATE gates on `status='scheduled'` so
        an edit cannot race the scheduler dequeueing the row. Returns 409
        MESSAGE_NOT_EDITABLE when the row is past the scheduled gate (queued /
        sending / sent / failed / cancelled) or does not exist. No billing
        side-effect — billing is debited on the send-path AFTER the scheduler
        picks the row up, so the new body is what gets accounted for +
        dispatched. At least one of `body` or `scheduled_at` must be supplied;
        `scheduled_at` is bounded to the same 35-day future horizon as the
        create path.
      parameters:
        - schema:
            type: string
            pattern: ^msg_[0-9a-f]{32}$
          in: path
          name: id
          required: true
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              additionalProperties: false
              properties:
                body:
                  type: string
                  minLength: 1
                  maxLength: 4096
                scheduled_at:
                  type: string
                  format: date-time
              anyOf:
                - required:
                    - body
                - required:
                    - scheduled_at
      responses:
        '200':
          description: Default Response
components:
  securitySchemes:
    Bearer:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Dashboard JWT token from Clerk
    ApiKey:
      type: apiKey
      name: X-API-Key
      in: header
      description: Server-to-server API key (dv_live_sk_*)

````