> ## 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.

# Roll back to an earlier version

> Restore a retained earlier version of a knowledge-base document. Non-destructive: the target version's content is re-uploaded as a new head version (the current head is snapshotted into history first), so rollback is fully reversible. Returns 202 with the freshly-minted head document. Requires the `knowledge:write` scope (admin / owner / developer).



## OpenAPI

````yaml /openapi.yaml post /api/v1/knowledge-bases/{id}/documents/{docId}/rollback
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/knowledge-bases/{id}/documents/{docId}/rollback:
    post:
      tags:
        - Knowledge Bases
      summary: Roll back to an earlier version
      description: >-
        Restore a retained earlier version of a knowledge-base document.
        Non-destructive: the target version's content is re-uploaded as a new
        head version (the current head is snapshotted into history first), so
        rollback is fully reversible. Returns 202 with the freshly-minted head
        document. Requires the `knowledge:write` scope (admin / owner /
        developer).
      parameters:
        - schema:
            type: string
          in: path
          name: id
          required: true
          description: Knowledge base ID (`kb_…`).
        - schema:
            type: string
          in: path
          name: docId
          required: true
          description: Document ID to roll back.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - version
              properties:
                version:
                  type: integer
                  minimum: 1
                  description: >-
                    1-based version number to restore (the first upload is
                    version 1).
      responses:
        '202':
          description: >-
            Accepted. Returns the freshly-minted head document created from the
            restored version.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: object
                    properties:
                      id:
                        type: string
                        description: >-
                          ID of the new head document created from the restored
                          version.
                      knowledge_base_id:
                        type: string
                      name:
                        type: string
                      version:
                        type: integer
                  meta:
                    type: object
                    properties:
                      request_id:
                        type: string
                      timestamp:
                        type: string
                        format: date-time
        '422':
          description: >-
            The requested version was not retained (its content exceeded the
            rollback size cap) and cannot be restored.
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: object
                    properties:
                      code:
                        type: string
                      message:
                        type: string
                      status:
                        type: integer
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_*)

````