What is a WhatsApp Session Message?

What is a WhatsApp Session Message?

WhatsApp defines a conversation as a 24-hour session of unlimited messaging between a person and a business. The 24-hour conversation session begins when:

- A business-initiated message (templated messages) is delivered to a user, outside of a 24-hour window
- A business reply to a user message is delivered within the 24-hour window

In both cases, the conversation session begins when the business’ message is delivered.

​When businesses initiate messages to users (templated messages), a conversation will be initiated regardless of whether users reply to that message within the next 24 hours. There is no limit on the number of messages a business and a user can exchange in a single 24-hour conversation session.

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