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Glossary

WhatsApp Session: What It Means for Your Business

What a session is, how it opens and resets, and what it means for billing and service.

The short answer A WhatsApp session is one continuous interaction period between your business and a customer — from the first message to 24 hours after the last one. Every customer message extends the session, and its state decides what you can send (free-form inside, templates outside) and what Meta bills.
01 · Glossary

How sessions open

Every conversation is a session with an owner.

  • Customer message: opens a service session
  • Business template send: opens a session billed by category
  • Click to WhatsApp entry: opens a marketing-billed session by default
  • QR scan or wa.me link: opens a session the customer started
02 · Glossary

How sessions reset

Sessions live 24 hours and reset constantly.

  • Each customer message restarts the 24-hour clock
  • A session can run for days if the customer keeps replying
  • After 24 quiet hours, the session closes
  • A new business template reopens a new session with a new fee
03 · Glossary

Why sessions matter to a merchant

Session state drives both cost and customer experience.

  • Open session: free replies, no templates, instant answers
  • Closed session: only approved templates, every send bills
  • A slow reply can close the window and turn a free reply into a billable send
  • Wutt tracks each session's state in the inbox and flags when a window is about to close
04 · Glossary

Sessions and the team

A session is not owned by one person — it is owned by the business.

  • Any agent can continue a session from the shared inbox
  • Assignments keep sessions from stalling
  • AI reply drafts and quick replies keep sessions inside the window
  • Session history stays on the contact record for the next follow-up

Last updated 5 August 2026

Common questions

24 hours from the last customer message. Every reply from the customer restarts the clock.

Effectively yes. Meta's billing calls the same unit a conversation; the session is the interaction itself.

Free-form messages: answers, questions, links, anything appropriate. No template needed.

Business-initiated messages become template-only and open a new billable conversation.

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