A shared queue
Give the team one place to see supported conversations and assign responsibility.
Unified Inbox connects supported WhatsApp Business, Facebook Messenger, and LINE accounts to a shared City of Hats staff workflow. Customers can stay on the channel they already use while staff reduce tab switching and fragmented ownership.
Unified Inbox can normalize supported inbound conversations into a team queue and send replies through the connected provider. It does not remove the provider from the path: WhatsApp, Meta, and LINE continue to apply their own APIs, account rules, security model, metadata practices, availability, and retention.
Give the team one place to see supported conversations and assign responsibility.
Avoid forcing every initial inquiry into a new app or account before the team can respond.
Make it clear when a conversation is on an external provider and when a participant moves to a protected Hat workflow.
Provider eligibility, API capabilities, message types, templates, conversation windows, and geographic availability can change and must be confirmed during onboarding.
Connect an eligible business messaging setup and route supported conversations into the staff workflow.
Bring supported Page conversations into the same operational queue.
Handle supported LINE conversations alongside other connected channels.
Give a staff member ownership and track the next action within the configured workflow.
Use provider-compatible responses and templates where the connected network requires them.
When the content becomes sensitive, invite the participant into an appropriate Hat channel instead of overstating external-channel protection.
The hand-off point should be intentional, visible to staff, and understandable to the person contacting the organization.
Confirm ownership, provider eligibility, API access, data terms, and the message types the organization plans to handle.
Incoming conversations enter the configured queue, where staff assign and answer them through the provider integration.
Move confidential documents or conversations to an approved secure channel when the external network is no longer appropriate.
An integration cannot retroactively make an external messenger end-to-end encrypted under the City of Hats model. The right design keeps the boundary explicit and provides a safer escalation path.
The external network transports the customer side of the conversation and may process content and metadata under its own terms.
City of Hats end-to-end encryption applies to supported Hat-to-Hat communication, not automatically to bridged provider messages.
The organization must control who can access the shared queue and how staff authenticate, export, copy, or retain information.
The customer is responsible for provider policies, messaging consent, templates, opt-outs, retention, and applicable communication laws.
You already receive legitimate service inquiries through supported business messaging channels and need clearer team ownership and escalation.
It is not a way to bypass provider rules, preserve end-to-end encryption across bridged networks, import every historical message, or support every feature of each native app.
Confirm provider account eligibility, regions, message types, templates, webhooks, media handling, retention, deletion, exports, staff permissions, and the secure-escalation policy.
Product scope reviewed: 10 August 2026
The solution is designed around supported WhatsApp Business, Facebook Messenger, and LINE Official Account integrations. Exact provider availability and feature coverage must be confirmed for the account, country, and use case.
No. Messages traveling through an external provider remain subject to that provider’s security and data handling. City of Hats end-to-end encryption applies when participants communicate through the supported Hat-to-Hat model.
Yes for supported connected conversations. The customer sends and receives through their usual provider, while authorized staff work from the configured City of Hats queue.
A workflow can invite a participant to continue through an appropriate City of Hats experience when more sensitive communication or document exchange begins.
No. Provider fees, templates, conversation windows, rate limits, approvals, outages, and policy changes remain controlled by WhatsApp or Meta, Facebook, and LINE.
Tell us which business accounts you operate, where your customers are located, and when conversations should move to a protected workflow.