WhatsApp 24-hour window

Messaging compliance

WhatsApp

Learn when WhatsApp Business Platform replies need a template, which message resets the service window, and what to check before a delayed reply.

What is the WhatsApp 24-hour window? Queues change the answer

WhatsApp message template

Understand approved WhatsApp message templates, when they are needed, and what to review before reusing one for another send.

What is a WhatsApp message template? Approval can change

WhatsApp opt-in

Understand WhatsApp opt-in, review how permission is collected, and check how requests to stop messages reach your sending process.

What is WhatsApp opt-in? Permission must be traceable

WhatsApp compliance

The cited policy applies to businesses using WhatsApp Business Services to contact people who supplied their phone number and opted in

Check opt-in, the timestamp of the latest user message, and template purpose as separate conditions before sending

On the WhatsApp Business Platform, businesses need the recipient's supplied mobile number and opt-in, must honor opt-out requests, and may use template-free replies only within 24 hours of the latest user message

Outside the customer service window, the Business Platform permits only approved message templates used for their designated purpose

On the WhatsApp Business Platform, a reply within 24 hours of the latest user message does not require a template, though the other messaging-policy requirements still apply

WhatsApp Business Messaging Policy

RCS compliance

SMS compliance

Review WhatsApp opt-in, customer service window, and approved-template requirements before sending a business message.

WhatsApp compliance requirements and checklist: Start with an explicit send decision

Terms in this channel

WhatsApp 24-hour window

WhatsApp message template

WhatsApp opt-in