> ## Documentation Index > Fetch the complete documentation index at: https://docs.kapso.ai/llms.txt > Use this file to discover all available pages before exploring further. # Create a shared email destination > Creates a `shared_email` destination with status `pending` and sends a verification email to the address. The link expires after 7 days. The destination cannot receive notifications until the recipient confirms. Addresses belonging to project members are rejected; those members manage their own personal notification preferences in the Kapso app. Slack channels are added from the Kapso app under **Notifications**. Once connected they appear in `GET /notifications/destinations` and can be routed like any other destination. Requesting `kind: slack_channel` here returns `400`. Creating a destination for an address that was previously removed reuses the existing destination: it returns to `pending` and a new verification email is sent. ## OpenAPI ````yaml /api/platform/v1/openapi-platform.yaml post /notifications/destinations openapi: 3.1.0 info: title: Kapso Platform API version: 0.2.0 description: > Build WhatsApp messaging into your product. Manage customers, connect phone numbers, send broadcasts, and handle conversations. servers: - url: https://api.kapso.ai/platform/v1 description: Production security: - ApiKeyAuth: [] tags: - name: Customers description: Manage customer accounts - name: Setup Links description: WhatsApp onboarding via embedded signup - name: Phone Numbers description: Connect and manage WhatsApp numbers - name: Webhooks description: Subscribe to WhatsApp events - name: Display Names description: Update WhatsApp business display names - name: Broadcasts description: | Send template messages at scale **Alpha**: This API is in alpha and subject to change - name: Conversations description: Manage conversation state - name: Media description: Upload media files for WhatsApp messaging - name: Users description: Manage project team members - name: Inbox Embeds description: Create and manage embeddable inbox access links - name: Webhook Deliveries description: View webhook delivery attempts and their status - name: External API Logs description: View logs of external API calls made by the project - name: Log Search description: Search log events across API, Meta, workflow, and webhook sources - name: Events description: Emit and query project-scoped events - name: Provider Models description: List available AI provider models - name: WhatsApp Flows description: Build interactive WhatsApp Flows for surveys and forms - name: Contacts description: Manage WhatsApp contacts - name: Findings description: Detect recurring problems in conversations and investigate them with AI - name: Notifications description: >- Route project alerts to shared inboxes and Slack channels connected from the Kapso app paths: /notifications/destinations: post: tags: - Notifications summary: Create a shared email destination description: > Creates a `shared_email` destination with status `pending` and sends a verification email to the address. The link expires after 7 days. The destination cannot receive notifications until the recipient confirms. Addresses belonging to project members are rejected; those members manage their own personal notification preferences in the Kapso app. Slack channels are added from the Kapso app under **Notifications**. Once connected they appear in `GET /notifications/destinations` and can be routed like any other destination. Requesting `kind: slack_channel` here returns `400`. Creating a destination for an address that was previously removed reuses the existing destination: it returns to `pending` and a new verification email is sent. operationId: createNotificationDestination requestBody: required: true content: application/json: schema: type: object required: - kind - address properties: kind: type: string enum: - shared_email address: type: string description: Email address. label: type: string description: Display name for the destination. Optional. example: kind: shared_email address: ops@example.com label: Ops inbox responses: '201': description: Destination created content: application/json: schema: type: object properties: data: $ref: '#/components/schemas/NotificationDestination' example: data: id: 6f708192-0314-42d5-b6e7-f8091a2b3c4d kind: shared_email label: Ops inbox status: pending channel: email address: ops@example.com verified_at: null slack_channel_binding_id: null workspace_name: null user_id: null created_at: '2026-09-01T11:58:00.000000Z' updated_at: '2026-09-01T11:58:00.000000Z' '400': description: Unsupported destination kind content: application/json: schema: type: object properties: error: type: string example: error: Add Slack channels through the dashboard. '401': $ref: '#/components/responses/UnauthorizedError' '422': description: Invalid destination content: application/json: schema: type: object properties: errors: type: object additionalProperties: type: array items: type: string examples: member_address: value: errors: base: - >- This email belongs to a project member. Use a shared inbox for team alerts. suppressed_address: value: errors: base: - >- This email address is blocked from receiving emails. Use a different shared inbox. components: schemas: NotificationDestination: type: object properties: id: type: string format: uuid kind: type: string enum: - shared_email - slack_channel label: type: string nullable: true description: >- Display name. For `slack_channel` destinations this is the channel name. status: type: string enum: - pending - active - unhealthy description: > A `shared_email` destination is created as `pending` and becomes `active` once the recipient opens the verification link. Slack destinations are `active` on creation and become `unhealthy` when the channel can no longer be posted to. Removed destinations are disabled and no longer listed. channel: type: string enum: - email - slack address: type: string description: Email address, or Slack channel ID for `slack_channel` destinations. verified_at: type: string format: date-time nullable: true slack_channel_binding_id: type: string format: uuid nullable: true description: >- Kapso Agent channel binding, or `null` for channels connected only for notifications. workspace_name: type: string nullable: true description: Slack workspace name, when the destination is a Slack channel. user_id: type: string format: uuid nullable: true description: Always `null` for team destinations. created_at: type: string format: date-time updated_at: type: string format: date-time ErrorResponse: type: object required: - error properties: error: type: string responses: UnauthorizedError: description: Missing or invalid API key content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-API-Key ````