Version 3 Public Preview | Developer Documentation Version 3 Public PreviewUpdated: Nov 4, 2025We are updating the UI for Embedded Signup. You can get a preview of what it looks like by enabling v3-public-preview. The new version will give partners a preview on what’s to come for Embedded Signup in the near future. Functionality between v3-public-preview and v3 are identical; the key difference is a simplified UI on v3-public-preview. Authentication screenThis screen authenticates business customers using their Facebook or Meta Business Suite credentials. Authorization screenThis screen describes the data the business customer will be permitting your app to access. Business Asset Selection ScreenThis screen gives customers the option to select existing business assets such as a Meta business portfolio and WhatsApp Business Account.Users also have the option to create new assets if they have not reached their portfolio limit. Business Asset Creation ScreenThis screen gives customers the option to select existing business assets such as a Meta business portfolio and WhatsApp Business Account.Users also have the option to create new assets if they have not reached their portfolio limit. Phone number addition screenThis screen allows the business customer to enter a new business phone number to associate with their WhatsApp Business Account.It also allows the customer to choose how they wish to receive their verification code, which they will need to provide in the next step.If you are providing phone numbers to your customers, you will have to deliver these codes to your customers, or provide pre-verified numbers instead. Phone number verification screenThis screen allows the business customer to verify ownership of the business phone number they entered in the previous step. Permissions review screenThis screen provides a summary of the permissions the business customer will be granting to your app. Success screenThis screen indicates that we successfully created and associated all of the business customer’s assets (business portfolio, WABA, phone number display profile, and business phone number).When the customer clicks Finish, a message event will be triggered, containing the customer’s WABA ID and business phone number ID, which you must then use to onboard the customer to the platform.