> ## Documentation Index > Fetch the complete documentation index at: https://docs.open.cx/llms.txt > Use this file to discover all available pages before exploring further. # Update Twilio Flex integration settings > Change the Twilio Flex AI queue, worker email domain, handoff toggles, or synced task attributes. ## OpenAPI ````yaml patch /integrations/twilio-flex/settings openapi: 3.1.0 info: title: OpenCX API description: > OpenCX is an AI-powered, all-in-one platform for customer support and outbound communications. Use this API to manage your OpenCX organization's AI agents, actions, conversations, contacts, and more. To get started, generate a new API key from the dashboard. ## Authentication All API endpoints require authentication using a Bearer token. You can generate an API key from your OpenCX dashboard. ## Rate Limiting API requests are rate limited to ensure fair usage. The current limits are: - 100 requests per minute for standard endpoints - 1000 requests per minute for streaming endpoints ## Error Handling The API uses standard HTTP status codes and returns detailed error messages in the response body. version: 1.0-beta license: name: MIT url: https://opensource.org/licenses/MIT servers: - url: http://localhost:8080 description: Development - url: https://api.open.cx description: Production security: - bearerAuth: [] paths: /integrations/twilio-flex/settings: patch: summary: Update Twilio Flex integration settings description: >- Partially update the Twilio Flex integration: AI queue, AI worker email domain, handoff toggles and contact-synced task attributes. Omitted fields keep their value; credentials cannot be changed here and the TaskRouter workspace is not re-provisioned. 404 when Twilio Flex is not connected. operationId: updateTwilioFlexSettings requestBody: required: true content: application/json: schema: type: object properties: ai_queue_sid: description: Optional AI queue SID for routing AI-handled conversations type: string ai_worker_email_domain: description: >- Optional email domain for AI workers. When set, each worker gets an email like opencx{N}-{random}@{domain} on its Twilio attributes. Set to empty string or null to clear. anyOf: - type: string minLength: 1 pattern: ^[a-z0-9.-]+\.[a-z]{2,}$ - type: 'null' internal_notes_enabled: description: >- Whether to post internal notes (e.g. the AI handoff summary) to the Flex conversation. Twilio Conversations has no internal-note concept — notes are delivered to ALL participants including the customer — so this is disabled by default. Notes are stamped with an internal_note message attribute so client apps can filter them. Omitting the field keeps the stored value. type: boolean interactions_handoff_enabled: description: >- Whether OpenCX drives the handoff routing itself via the Flex Interactions API (inviting a human into the interaction). Disabled by default: most customers listen to the OpenCX conversation-handoff webhook and run their own Interactions transfer — enabling this on top of that produces duplicate chat requests. Omitting the field keeps the stored value. type: boolean contact_synced_task_attributes: description: >- Task attribute names to promote from the session onto the contact, written as your Flex workflow sends them (e.g. "user_id", "is_hvc", "customers.name"). Empty (the default) syncs nothing. Only durable, customer-level attributes belong here — per-conversation values like an order id would be overwritten on every new session. Omitting the field keeps the stored value. type: array items: type: string minLength: 1 responses: '200': description: Default Response content: application/json: schema: type: object properties: connected: type: boolean settings: anyOf: - type: object properties: account_sid: type: string description: Twilio Account SID workspace_sid: type: string description: TaskRouter workspace SID ai_queue_sid: anyOf: - type: string - type: 'null' description: >- TaskRouter queue for AI-handled conversations; null = none ai_worker_sids: type: array items: type: string description: TaskRouter workers that represent the AI ai_chat_capacity: anyOf: - type: integer minimum: -9007199254740991 maximum: 9007199254740991 - type: 'null' ai_worker_email_domain: anyOf: - type: string - type: 'null' description: >- Domain used to give each AI worker an email attribute; null = none enabled: type: boolean internal_notes_enabled: type: boolean description: >- Post the handoff summary into the conversation (visible to the customer too) interactions_handoff_enabled: type: boolean description: >- OpenCX routes the handoff itself through Flex Interactions contact_synced_task_attributes: type: array items: type: string description: Task attributes copied onto the contact required: - account_sid - workspace_sid - ai_queue_sid - ai_worker_sids - ai_chat_capacity - ai_worker_email_domain - enabled - internal_notes_enabled - interactions_handoff_enabled - contact_synced_task_attributes additionalProperties: false - type: 'null' unusable_contact_sync_attributes: type: array items: type: object properties: name: type: string reason: type: string enum: - invalid - not_seen required: - name - reason additionalProperties: false description: >- Synced attribute names that will never match: 'invalid' = malformed, 'not_seen' = absent from recent tasks. Advisory; the save still happened. required: - connected - settings - unusable_contact_sync_attributes additionalProperties: false '500': description: Internal Server Error content: application/json: schema: $ref: '#/components/schemas/ErrorDto' components: schemas: ErrorDto: type: object properties: statusCode: type: integer message: type: string error: type: string securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: JWT ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.