Never send a message that fails.

WhatsApp's Rules,
Enforced Automatically.

WhatsApp's 24-hour (and 72-hour ad CTA) service window is enforced automatically. Agents are never allowed to send a free-form message that would fail — protecting your reputation, your customer relationships, and your WhatsApp account standing.

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24h

72h

100%

What you get

Everything built in.
Nothing bolted on.

Per-Conversation Window Tracking

Nexvox tracks the 24-hour (or 72-hour ad CTA) reply window for every active conversation individually. The countdown resets each time the customer sends a message.

Automatic Message Blocking

Agents cannot send a free-form reply outside the valid window. The send button is replaced with a template prompt — no accidental failures.

Template Prompts on Expiry

When a window closes, agents are automatically shown your approved WhatsApp message templates to re-initiate the conversation compliantly.

72-Hour Ad CTA Detection

Conversations that start from a WhatsApp ad CTA automatically receive the extended 72-hour reply window. Nexvox detects and applies this automatically — no manual tracking needed.

Window Expiry Alerts

Agents receive an in-inbox alert before a conversation window closes, giving them time to reply or prepare a template.

Window Analytics

See how often windows are expiring, which conversations are most at risk, and how your team is managing the 24-hour constraint.

How It Works

Up and running in three steps.

Connect your WhatsApp number
Add your WhatsApp Business account to Nexvox. Each workspace gets its own tenant-bound webhook endpoint — no shared infrastructure.
Connect your automation tools
Register callback endpoints for n8n, Make, Zapier, or custom systems. Copy the generated curl template and you're live.
Your team takes over
Agents work normally — Nexvox silently tracks every conversation window in the background and enforces the rules automatically. No training, no checklists, no risk.