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The WhatsApp 24-Hour Conversation Window: How It Works

The 24-hour conversation window is one of the fundamental concepts of WhatsApp Business API. Understanding it well allows designing communications effectively and avoiding costly mistakes.

The WhatsApp 24-Hour Conversation Window: How It Works

What is the 24-hour window

The 24-hour window opens when a customer sends a message to the business number and closes 24 hours later. During this window, you can send free messages (without approved template) to the customer.

Strategies to maximize the window

For customer support use cases, all communication happens inside the window. For proactive use cases, you must use templates.

Costs inside and outside the window

Service conversations (customer opens) are free up to 1,000 per month. Marketing, utility and authentication conversations have a per-conversation cost.

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