Opt-In-and-Outs
Note:
As of June 30th, 2022, the Sinch WhatsApp Business Messaging API does not check whether recipients have opted in before sending messages. It is the user's responsibility to ensure that the recipient has opted in before sending. The endpoints still function, but will not be used to allow or prevent message delivery. For more information on the opt-in and opt-out requirements for WhatsApp messages, see the WhatsApp Business Policy.
All Business initiated conversations via the Sinch WhatsApp Business API should start with an “Opt-In” by the user. This can be collected through any third party channel. For example in an SMS message, In-Line with a Web Form, in an Email, or even via a deep-link in print media.
Note
If a customer initiates contact with a WhatsApp Business, this will constitute as a temporary, 24-hour opt-in.
For more information on the opt-in and opt-out requirements for WhatsApp messages, see the WhatsApp Business Policy.
