> ## Documentation Index > Fetch the complete documentation index at: https://docs.interchange.io/llms.txt > Use this file to discover all available pages before exploring further. # Update notification preferences > Set notification opt-in preferences for the authenticated user. Replaces all existing opt-ins. ## OpenAPI ````yaml /v2/buyer-api-v2.yaml put /notification-preferences openapi: 3.0.0 info: title: Scope3 Buyer API version: 2.0.0 description: |- REST API for advertisers to manage advertisers, campaigns, and reporting. ## Authentication All endpoints require a Bearer token in the Authorization header: ``` Authorization: Bearer your-api-key ``` ## Base URL `https://api.interchange.io/api/v2/buyer` ## For AI Agents AI agents can use the MCP endpoint at `/mcp/v2/buyer` with three tools: - `initialize`: Start an MCP session - `api_call`: Make REST API calls - `ask_about_capability`: Learn about API features servers: - url: https://api.interchange.io/api/v2/buyer description: Production server security: [] tags: - name: Signup description: Request reviewed access to Interchange - name: Account description: Account management, service tokens, and preferences - name: Asks description: >- What you are waiting on Scope3 for — support, product, and supply asks in one list - name: Advertisers description: Manage advertisers - name: Product Discovery description: Discover and select products - name: Campaigns description: Manage advertising campaigns - name: Creatives description: Build, manage, and sync campaign creatives via AdCP Creative Protocol - name: Reporting description: Access performance metrics - name: Event Sources description: >- Manage event source configurations and log conversion/marketing events for attribution - name: Property Lists description: Validate property lists against AAO registry - name: Sales Agents description: View and connect sales agents - name: Measurement description: Measurement sources, records, context, and freshness - name: Syndication description: Syndicate resources to ADCP agents - name: Tasks description: Track async operation status - name: Buyer Billing description: >- Consolidated invoicing for buyers — invoices and pending invoice items issued by Scope3 across the buyer customer. - name: MCP description: Model Context Protocol endpoints for AI agents paths: /notification-preferences: servers: - url: https://api.interchange.io/api/v2 description: Production server put: tags: - Account summary: Update notification preferences description: >- Set notification opt-in preferences for the authenticated user. Replaces all existing opt-ins. operationId: updateNotificationPreferences requestBody: required: true content: application/json: schema: type: object properties: optIns: maxItems: 200 type: array items: type: object properties: notificationType: description: >- Notification event type to opt into. The enum is shared across personas, but each event type delivers only to the customer role it is scoped to — e.g. campaign.*, creative approval outcomes, media_buy_update_proposal.*, and the media_buy.* why-visibility transition events (forward_failed, awaiting_source_moderation, source_rejected, stuck) deliver to BUYER customers; storefront.* and inventory_source.* deliver to SELLER customers. Opting into an event type outside your role delivers nothing. type: string enum: - brand_agent.created - brand_agent.updated - brand_agent.deleted - campaign.healthy - campaign.unhealthy - campaign.created - campaign.updated - campaign.deleted - campaign.completed - creative.approved - creative.rejected - creative.changes_requested - creative.sync_started - creative.sync_completed - creative.sync_failed - creative.created - creative.updated - creative.deleted - strategy.created - strategy.updated - strategy.deleted - media_buy.created - media_buy.updated - media_buy.deleted - media_buy.forward_failed - media_buy.awaiting_source_moderation - media_buy.source_rejected - media_buy.stuck - media_buy_update_proposal.approved - media_buy_update_proposal.rejected - media_buy_update_proposal.expired - salesagent.available - salesagent.unavailable - salesagent.registered - salesagent.unregistered - salesagent.updated - salesagent.sync_action_required - signalsagent.registered - signalsagent.unregistered - signalsagent.updated - signalsagent.signal_activated - signalsagent.signals_fetched - outcomesagent.registered - outcomesagent.unregistered - outcomesagent.updated - syndication.completed - syndication.failed - audience.synced - audience.sync_failed - optimization.suggestion_received - optimization.suggestion_approved - optimization.suggestion_rejected - optimization.suggestion_applied - optimization.suggestion_failed - system.warning - system.error - learning_cycle.completed - learning_cycle.failed - hypothesis.status_changed - hypothesis.review_requested - hypothesis.proven - hypothesis.disproven - measurement.received - measurement.stale - opportunity.evaluated - opportunity.recommended - opportunity.flagged - opportunity.explore - storefront.composition_paused - storefront.products_not_traffickable - storefront_adapter_credential.action_required - storefront_adapter_connection.mapping_required - inventory_source.unhealthy - inventory_source.recovered - source.action_required - source.action_resolved - storefront.supply_nudge - storefront.liveness_degraded - storefront.liveness_recovered - provider_fleet.incident_opened - provider_fleet.incident_recovered - media_buy.approval_requested - creative.review_requested - ad_server.approval_requested - inventory_shortfall.review_requested - storefront.media_buy_forward_failed - storefront.media_buy_moderation_aging - murph_room.mentioned - ask.resolved channel: type: string enum: - email - in_app required: - notificationType - channel required: - optIns responses: '200': description: Update notification preferences '400': description: Bad request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '500': description: Internal server error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - bearerAuth: [] components: schemas: ErrorResponse: description: Standard error response type: object properties: data: type: string nullable: true enum: - null error: $ref: '#/components/schemas/ApiError' required: - data - error additionalProperties: false ApiError: description: Structured error object type: object properties: code: description: Machine-readable error code type: string message: description: Human-readable error message type: string field: description: Field path associated with the error type: string details: description: Additional error context type: object additionalProperties: {} required: - code - message additionalProperties: false securitySchemes: bearerAuth: type: http scheme: bearer description: API key or access token ````