To get started with WhatsApp, review the WhatsApp commerce policy first. This determines what businesses are allowed on the WhatsApp Business Platform.
The WhatsApp Sender Registration process is different for direct customers and Independent Software Vendors (ISV). If you are unsure which one applies to you, review Am I a direct customer or an ISV? to learn more.
In order to register a WhatsApp Sender for a brand which your business owns, use the WhatsApp Self Sign-up guide and get started in the Twilio Console by navigating to Messaging > Senders > WhatsApp Senders.
As an ISV, your clients will need to register WhatsApp Senders within their company’s Meta Business Account. Refer to the WhatsApp Tech Provider Program for details on how to allow your clients to do so directly within your website or app.