Step 1: Go to Phone Numbers > Click Add Number > Select the number and Proceed to Buy
Step 2: Set up Call Forwarding to your number
This especially required if the phone number you bought only has voice capabilities, since the Meta will be sending an OTP at the time of WhatsApp Registration. Ensure that you have access to the forwarding number
Step 3: Go to Settings > WhatsApp > Buy WhatsApp
Step 4: Click on Signup with Facebook
Step 5: Login to Facebook Account
Step 6: Click on Get Started
Step 7: Fill in your business information > Select Business Portfolio > Enter Business Name > Add website or profile page > Select Country
Step 8: Create or Select your WhatsApp Business account
Step 9: Create a WhatsApp business profile > Enter WhatsApp business account name > Enter WhatsApp business display name > Enter Category
Step 10: Enter the Twillio Phone Number
Select Verification as Phone if your number only has calling capabilities, ensure that you have enabled call forwarding. If your number has SMS capabilities then choose SMS
If you selected SMS, you will get the code from Meta under conversation on the app
Step 11: Enter the code received on call/SMS
Step 12: Review Permission
Step 13: The WhatsApp integration is complete and now you are ready to chat with people on WhatsApp
