Create Facebook Developer Account:
To create apps, the user must first create a developer account. Check out Whatsapp Cloud API setup.
Step 1: Start the registration process
Go to the Facebook for Developers website and click Get Started while logged into your Facebook account.
Step 2: Agree to our Terms and Policies
Click Next to agree to our Platform Terms and Developer Policies.
Step 3: Verify your account
Meta will send a confirmation code to the phone number and email address that you provide in order to confirm that you have access to them. Your number and email will be used for important developer notifications of any changes that may impact to your app.
Step 4: Select your occupation
Select an occupation that most closely describes what you do for a living.
Step 5: You can now create apps
Now that you have registered you can use the App Dashboard to create your first app.