Short version: reply to a Click-to-WhatsApp ad lead within 24 hours, and Meta lets you message them for free for the next 72 hours. Since October 1, most other replies cost money.
Take a builder in Gomti Nagar. His Friday ad brought in 180 WhatsApp chats by Sunday. His two salesmen answered 40. The rest waited till Monday, and many buyers had moved on.
He didn’t have an ads problem. He had a Monday problem. Here’s how to fix it, hour by hour.
What Is the Click-to-WhatsApp Ads Free Entry Point Window?
In plain words: a lead comes to you from an ad, you reply within 24 hours, and for the next 72 hours you can message them without paying Meta a rupee.
The clock starts with your first reply, not their message. People mix this up a lot.
There’s a catch, though. You only get the free window if all three of these are true:
- The chat started from an ad or your Page button. That means a Click-to-WhatsApp ad on Facebook or Instagram, or the WhatsApp button on your Facebook Page. If someone found your number on Google and messaged you, that’s a normal chat.
- You replied within 24 hours. Miss it, and the window never opens.
- You’re on the WhatsApp Business API. The free window is part of Meta’s API pricing. The regular Business app on your phone doesn’t get it.
What makes it so useful is that everything is free inside those 72 hours. Normal replies, templates, even marketing templates. Honestly, there’s no better time to qualify a lead.
WhatsApp API Pricing Change (October 2026): Why the 72-Hour Free Window Matters Now
Until September, replying to a customer who messaged you first cost nothing.
From October 1, Meta charges for those replies (service messages) and for utility templates in the 24-hour window. The 72-hour ad window was left alone. Still free.
Here’s what surprised a few of our clients. “Service message” isn’t only your agent typing. Auto-replies, chatbot buttons, and every bot step count too.
So that six-question bot from last year? Outside the free window, it’s six paid messages per lead.
Earlier, replying fast was about beating your competitor to the buyer. Now it also decides how much you pay to have the conversation at all.
We covered the new charges in our post on the Meta service charge. This one is about what to do with your ad leads.
WhatsApp 72-Hour Free Window vs. 24-Hour Customer Service Window
This is where most people get confused, so here are both windows side by side. They run on separate clocks. An ad lead can be inside both for the first day, and then only the 72-hour one.
| What to compare | 24-hour customer service window | 72-hour Free Entry Point window |
|---|---|---|
| What opens it | Any message a customer sends you | A chat from a Click-to-WhatsApp ad or Facebook Page WhatsApp button, plus your reply within 24 hours |
| When the clock starts | The customer’s latest message | Your first reply |
| Length | 24 hours, resets each time the customer messages | 72 hours, fixed |
| Free-form replies (agent, auto-reply, chatbot) | Charged since October 1, 2026 | Free |
| Utility templates | Charged since October 1, 2026 | Free |
| Marketing templates | Not sendable as free-form; template is charged | Free |
| After it closes | Only paid templates can be sent | Normal pricing applies |
Look at the last row. Once the 24-hour window closes, you can only send templates.
But if the 72-hour window is still running, those templates are free. That’s two extra days to nudge a quiet lead. Not many teams use this.
CTWA Ads Lead Qualification: The 72-Hour Playbook
By hour 72, every lead needs a label (hot, warm, or cold), an owner, and a next step. Here’s how we’d split the time.
Hour 0 to 1: Auto Reply to WhatsApp Ad Leads Instantly
Your first reply is what opens the free window. And most ad leads arrive at night or on Sundays, exactly when your team is off.
Here’s what to set up:
- An automatic welcome message that goes out the second a chat arrives, at 2 am or on Diwali, doesn’t matter.
- One easy question with buttons, not a form. For our builder friend: “Hi! Which one are you looking at? 2 BHK / 3 BHK / Just checking prices.”
- A tag showing which ad the lead came from. You’ll thank yourself in a month.
Hours 1 to 24: Qualify Click-to-WhatsApp Leads With 3 Questions
You really only need to know three things before a salesperson picks up the phone:
- What do they want? Size, product, service.
- What’s their budget? Give ranges as buttons. People answer ranges and ignore open questions.
- When are they buying? This month, in three months, or just looking.
Once you have that, sorting is easy:
- Hot (right budget, buying soon): hand it to a salesperson right away. A real person should message them within the hour, while they’re still on their phone.
- Warm (good fit, buying later): put them on a follow-up sequence.
- Cold (wrong budget or just browsing): send the brochure or price list, thank them, move on. No point pushing.
Hours 24 to 48: Follow Up on WhatsApp Ad Leads With Free Templates
A lot of people go silent after day one. Normal. Their 24-hour window has closed, so now you can only send templates. But your 72-hour window hasn’t, so those templates are free.
A few rules we’d stick to:
- Send one message, not five. Spam gets you blocked, and blocks hurt your number’s quality rating with Meta.
- Make it worth opening. A site visit slot this weekend, the floor plan, an early-bird price.
- Watch for replies. If they answer, a new 24-hour window opens, and you’re back in conversation.
Hours 48 to 72: Close the Lead Before the Free Entry Point Window Ends
Last free stretch. Before hour 72, run through this:
- Hot and warm leads have something concrete booked: a call at 6 pm tomorrow, a Saturday site visit, a demo.
- You’ve asked if they’d like WhatsApp updates later. That opt-in helps with future campaigns.
- Every lead has an owner and a status. Nothing is still marked “new”.
5 Mistakes That Waste Your WhatsApp Free Entry Point Window
These five come up again and again:
- Ads pointing to someone’s personal Business app. No API, no free window. Want to keep the app? Number coexistence lets you keep it on the same number while the API handles ad leads.
- The weekend gap. Friday night leads answered on Monday have already lost their free window, and it doesn’t come back.
- Giant chatbot flows. Ten or twelve steps and buyers drop off halfway. Outside the free window, you pay for every step too. Three questions are plenty.
- Hot leads with no owner. The bot flags a great lead, and then it sits in a shared phone nobody checks. Every hot lead needs one named person who gets an alert.
- Not tracking which ad a lead came from. Then you can’t tell which creative brings serious buyers, and you keep paying for the one that brings window shoppers.
Meta Ads WhatsApp Lead Management With Teaminbox
We’re a bit biased here, sure. But Teaminbox runs on the official WhatsApp Business API, so your ad leads get the free window. Here’s what maps to what.
| Playbook stage | What you need | How Teaminbox does it |
|---|---|---|
| Hour 0 to 1 | Instant reply, day and night | WhatsApp chatbot with auto-replies and keyword triggers, 24×7 |
| Hour 0 to 1 | Know which ad the lead came from | Automatic lead capture from WhatsApp chats, with tags |
| Hour 1 to 24 | Send hot leads to the right person | Smart routing and agent assignment in a shared inbox |
| Hour 24 to 48 | Free template follow-ups | Approved templates and broadcast sequences |
| Hour 48 to 72 | Nothing left as “new” | Custom pipelines, internal notes and follow-up reminders |
| Always | Keep the app on the same number | Number coexistence |
Leads from Meta lead forms, Google Ads, LinkedIn, and your website also land in the same pipeline. No jumping between five tools.
FAQs: Click-to-WhatsApp Ads and the 72-Hour Free Window
What is the WhatsApp Free Entry Point window?
It’s 72 hours where your WhatsApp messages to a lead cost nothing. You get it when the lead messages you from a Click-to-WhatsApp ad or your Facebook Page’s WhatsApp button, and you reply within 24 hours.
Does the 72-hour window start from the customer’s message or my reply?
From your first reply. Their message just starts the 24 hours you have to respond.
What happens if I reply to a Click-to-WhatsApp lead after 24 hours?
Then you’ve missed it. It becomes a regular chat, and Meta’s normal rates apply to whatever you send.
Are template messages free inside the 72-hour window?
Yes, all of them, marketing ones included. They stay free even after the separate 24-hour window has closed, as long as you’re still within the 72 hours.
Did the October 2026 WhatsApp pricing change affect the Free Entry Point?
No. The October change made replies and utility templates inside the 24-hour window chargeable. The 72-hour ad window wasn’t touched.
How can I qualify WhatsApp ad leads automatically?
Set up a bot that answers straight away and asks what they want, their budget, and when they’re buying. Send the hot ones to a salesperson, and follow up with the warm ones before the 72 hours run out.
Can I use the free window with the normal WhatsApp Business app?
No, it’s an API thing. But with number coexistence, you can keep using the app on the same number while the API handles your ad leads.
Reduce WhatsApp API Cost After October 2026: The Bottom Line
You’re already paying Meta to bring people into your WhatsApp. The least you can do is answer them while it’s free.
Reply in minutes, ask three questions, get hot leads to a real person, and close everything before hour 72.
Our Gomti Nagar builder now has Friday night leads answered before he’s home. His team starts Monday with a sorted list, not a pile of unread chats.
Want to set up the same thing? Try Teaminbox free, or just message us on WhatsApp and we’ll walk you through it.
