Understanding the 72-Hour Free Messaging Window for CTWA Leads

When a user clicks on your Click to WhatsApp Ad (CTWA) or Facebook Page CTA button from their mobile app and sends you a message:

🕒 Step-by-step Flow:

  1. 📩 Message Initiation:

A WhatsApp user sends you a message via your CTWA Ad or Facebook Page CTA.

This opens a 24-hour Customer Service Window (standard rule).

  1. ✅ Your Response Within 24 Hours:

If you respond within 24 hours using any type of message (template or session message), Meta grants you a Free Entry Point (FEP) window.

This FEP window is valid for 72 hours from the time of your response.

  1. 💬During the 72-Hour FEP Window:

You can send any message type (template or non-template) to that user at no charge.

But remember: if the 24h Customer Service Window closes and you're beyond 24h from the user's last message, you can only send template messages — though they are still free within the 72h FEP window.

🔁 Quick Example:

  • A user clicks your CTWA Ad and messages you at 12:00 PM Monday.

  • You reply at 3:00 PM Monday → this reply activates the 72h Free Entry Point window.

  • You can now message them for free (any type) until 3:00 PM Thursday.

  • If you had replied after the 24h mark, no FEP window would be opened, and normal charges apply.

📌 Pro Tips for Success

  • Keep all assets (Page, Ad Account, WABA) under the same Meta Business Portfolio

  • Use precise audience targeting to maximize ROI

  • Set up CTWA Journeys to engage users automatically

  • Use DoubleTick Analytics to track campaign results, replies, and conversion


Start your first CTWA campaign today and watch high-intent leads flow straight into your DoubleTick dashboard — ready to convert!

Last updated