Your message was accepted. Has the customer actually received it?
Build accurate WhatsApp delivery tracking from API acceptance and status events. Handle duplicates, delayed events and conflicting outcomes in Node.js.
WhatsApp Systems
One WhatsApp agent serves several shops. Keep their data separate.
Build a multi-tenant WhatsApp agent without leaking one shop’s data to another. Bind identity at ingress and enforce it in tools, caches and queries.
Your WhatsApp campaign is delaying support replies. Fix the queue.
Use WhatsApp queue prioritisation to keep support replies moving during campaigns. Build a bounded, fair scheduler and test it locally with Node.js.
Your customer sends five messages. How should your bot reply?
Handle WhatsApp message batching with bounded buffers, conversation revisions and stale-reply checks. Build and test the core flow in Node.js.
Your bot and support agent both reply. Who owns the chat?
Build a WhatsApp bot human handoff that blocks stale automated replies. Follow conversation ownership, send gates and recovery in Node.js.
A voice note arrives, then a correction. Which request wins?
Keep WhatsApp voice note processing consistent when customers correct themselves. Use ordered input slots and version checks in a tested Node.js example.