24-Hour Customer Service Window Policy (Meta/WhatsApp)Can only be sent within the 24-hour customer service window
This window starts (or refreshes) whenever a WhatsApp user messages you or calls you
When the window is open, you can send any type of message to the user
After the 24-hour window expires, free-form messages will not be delivered
Use approved template messages for communication beyond the 24-hour window
Note
If a contact is not available in the application, the system will automatically create a new contact and then send the message. This ensures seamless message delivery even for new phone numbers
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