> ## Documentation Index > Fetch the complete documentation index at: https://developer.demand-iq.com/llms.txt > Use this file to discover all available pages before exploring further. # Remove an earlier email template version > Removes a version from one template's version list for good. The version's sends are kept in your organization-wide counts, but the template never lists or activates it again. Saving identical copy later creates a new version with zero counts. Pass `untracked` as `versionId` to remove the row for sends made before AI Presentations recorded template versions. Removing the Demand IQ default copy affects only this template. You can't remove the template's active version. Doing so returns `409`. Returns `404` when email template performance isn't enabled for your organization, or the template or version isn't on the list, including a template that belongs to another organization. ## OpenAPI ````yaml /openapi.json delete /api/delivery/template-performance/{versionId} openapi: 3.0.0 info: title: AI Presentations API version: 1.0.0 description: >- REST API for AI Presentations — an AI-powered presentation platform with narrated slides, live Q&A, and deck management. **Authentication**: Most endpoints require a session cookie obtained from `POST /api/auth/login`. Presentation playback endpoints (`/api/qa`, `/api/narration/*`) also accept a `presentationId` for unauthenticated viewer access. contact: name: Demand IQ url: https://demand-iq.com servers: - url: https://app.demand-iq.com description: Production - url: http://localhost:3000 description: Local development security: [] tags: - name: Decks description: Manage presentation decks - name: Slides description: Manage slides within a deck - name: FAQs description: Manage pre-built Q&A pairs - name: Branding description: Colors, logo, and call-to-action configuration - name: Q&A description: Live question answering and Q&A settings - name: Narration description: Text-to-speech synthesis - name: Presentations description: Create and manage personalized presentation instances - name: Generation description: AI-powered content generation from slide images - name: Images description: Image upload and management - name: Voices description: Available TTS voices - name: Utility description: Health check and diagnostics - name: Authentication description: Session-based login, logout, and identity - name: Company description: Organization contact info and knowledge base - name: Notifications description: Event subscriptions and delivery log - name: Contracts description: Contract template import and e-signature - name: Fonts description: Available Google Fonts for branding - name: Roof Measurements description: Request and track automated roof measurements - name: Actions description: Voice/text command detection for presentation control - name: Appointments description: Appointment scheduling for presentation viewers - name: Activity description: Recent presentation activity feed - name: Engagement description: Presentation engagement analytics - name: Onboarding description: >- Per-user product onboarding milestones (ENG-641). Milestone endpoints are idempotent and are called by the app UI — they should not be treated as tenant-integration surface. paths: /api/delivery/template-performance/{versionId}: delete: tags: - Engagement summary: Remove an earlier email template version description: >- Removes a version from one template's version list for good. The version's sends are kept in your organization-wide counts, but the template never lists or activates it again. Saving identical copy later creates a new version with zero counts. Pass `untracked` as `versionId` to remove the row for sends made before AI Presentations recorded template versions. Removing the Demand IQ default copy affects only this template. You can't remove the template's active version. Doing so returns `409`. Returns `404` when email template performance isn't enabled for your organization, or the template or version isn't on the list, including a template that belongs to another organization. parameters: - in: path name: versionId required: true schema: oneOf: - type: string format: uuid - type: string enum: - untracked example: 3f1c9a2e-7b4d-4e8a-9c21-5d6f0a8b1e47 description: >- The template version ID, or `untracked` for the row of sends made before AI Presentations recorded template versions. - in: query name: deckId required: true schema: type: string format: uuid example: 8b2e4f10-3c6a-4d9e-a1f7-62c0b5d9e384 description: The template whose version list to remove the version from. responses: '204': description: The version was removed from the template's list '400': description: Invalid `versionId` or `deckId` content: application/json: schema: $ref: '#/components/schemas/Error' '401': description: Not authenticated content: application/json: schema: $ref: '#/components/schemas/Error' '404': description: >- Email template performance isn't enabled for your organization, or the template or version isn't on the list content: application/json: schema: $ref: '#/components/schemas/Error' '409': description: The version is the template's active version and can't be removed content: application/json: schema: $ref: '#/components/schemas/Error' '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/Error' security: - bearerAuth: [] - sessionCookie: [] components: schemas: Error: type: object properties: error: type: string required: - error securitySchemes: bearerAuth: type: http scheme: bearer description: >- A Demand IQ API key or service token, passed in the `Authorization: Bearer` header. sessionCookie: type: apiKey in: cookie name: session description: Session cookie obtained from `POST /api/auth/login`. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.