Inbox

1. Getting Started with Unified Inbox — screenshot tour, left/right columns, channel chips, unread toggle

2. Sending a Cross-Channel Reply — how the reply box picks channel + gateway, attaching files, keyboard shortcuts

3. Using AI Reply Copilot — enabling AI Models, generating suggestions, cost/rate-limit notes

4. Setting up Inbound Email — Reply-To routing, per-provider webhook setup (SendGrid / Mailgun / Postmark)

5. Setting up Inbound SMS — webhook URL format per provider (Twilio / Vonage / Infobip / MessageBird), signing key config

6. Plan Gating for Unified Inbox — per-plan toggle, upgrading a member's access