Build a Claimable Community DM Queue That Cannot Silently Drop Requests

A community adds a “Talk to a coordinator” button. The demo is convincing: click it, open a direct message, reply. The operational version is harder. What happens when two coordinators claim the same request? What if a worker creates the conversation but crashes before saving its ID? Should an expired claim be retried automatically? Who notices when translation fails? This is partly a technical problem and partly a role problem. A coordinator should not have to remain perpetually online to prove that the community is cared for. The system should make ownership, waiting, and failure visible. In this tutorial, we will build the application-owned state machine behind a claimable community DM queue. Tencent RTC provides the social messaging layer; our application remains responsible for assignment, retries, audit state, and escalation. Tencent RTC's Social Messaging solution covers scenarios including 1:1 chat, group discussions, communities, and rich media. We will use the 1:1 sc