What is WhatsApp conversation?
A WhatsApp conversation was Meta's original billing unit, a 24-hour session between a business and a customer. Since the per-message pricing model launched in 2025, businesses are billed per delivered template message instead, grouped by category.
Why WhatsApp conversation matters
Understanding the shift from conversation-based to per-message billing matters because it changes how you budget. Your cost now scales with messages sent and their category, not with 24-hour windows opened.
Example
Under the old model, ten template messages inside one 24-hour window counted as a single conversation. Under per-message pricing, each delivered template is billed on its own.
Related terms
- WhatsApp conversation categories
- WhatsApp 24-hour window
- WhatsApp Business API pricing 2026
- Full WhatsApp Business API glossary
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Is WhatsApp still billed per conversation?
No. Since 2025 Meta bills per delivered template message, not per 24-hour conversation.