When the approval process ends and your account has been approved, navigating in Programmable Messaging > Sender > Whataspp Senders you will be able to create a sender, i.e. a Whatsapp account that is able to send and receive messages. Clicking on + button will be opened a profile information form that will allow you to create a Whataspp profile that will be visible to everyone will contact you through this channel. When you have filled out the required fields, click on Submit Request button at the bottom of the dialog box. This approval process may take several business days.