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# What Is the WhatsApp Business 24-Hour Window Rule?
- URL: https://blog.jestor.com/whatsapp-business-24-hour-window/
- Published: 2026-09-17T22:26:27.000Z
- Updated: 2026-09-17T22:26:27.000Z
- Author: Bruno Bannach

The **WhatsApp Business 24-hour window** is the period during which you can send free-form messages to a customer. If they stop messaging you for 24 hours, the window closes and only an approved template can reopen it.

## Why the rule exists in practice

The window is what keeps the official API from becoming a broadcast channel. For businesses, it changes how outbound communication has to be planned.

- A customer who goes quiet cannot be messaged freely
- Follow-ups have to be structured around templates
- Campaigns and reminders need approved content in advance
- Support teams can be locked out of a conversation they were mid-way through

## Inside the window versus outside it

| Situation                        | What you can send                 | Meta cost                                    |
| -------------------------------- | --------------------------------- | -------------------------------------------- |
| **Window open**                  | Any free-form message             | No additional Meta charge for replying       |
| **Window closed**                | Approved templates only           | Template sends are billed separately by Meta |
| **Customer replies to template** | Window reopens, free-form resumes | Back to normal replying                      |

## How this works in Jestor

1. Open the conversation in **Jestor** — a closed window is flagged directly in the message area.
2. Send an approved template straight from that same area, without switching screens.
3. Choose from the templates made available for that specific process.
4. Wait for the customer to reply, which reopens the window.
5. Continue the conversation normally once it is open again.

## Why choose Jestor for WhatsApp conversations?

**Jestor** shows the window state inside the conversation rather than letting a message fail silently, and it lists only the templates relevant to that process so the right one is easy to pick.

An active conversation is indicated visually, so a team member can tell at a glance whether they can reply freely or need a template.

## Frequently Asked Questions

### How do I reopen a closed window?

By sending an approved template. If the customer replies, the window reopens.

### Does replying cost extra?

Receiving and replying manually carries no additional **Meta** charge. See [jestor.com](https://jestor.com/?ref=blog.jestor.com).

### Can I see whether the window is open?

Yes, it is indicated in the conversation.

## Video Tutorial: Step by Step

Check out other practical tutorials on the Jestor YouTube channel.

## Get to know Jestor

With **Jestor**, you can automate workflows, connect teams, and build internal systems your way — all without code and powered by **AI**. Discover Jestor at [jestor.com](https://jestor.com/?ref=blog.jestor.com) and see how to take your company's operations to a new level of efficiency and control.