You must verify your Tax ID on Meta to trigger the templates. Your Meta business and address details need to be verified before templates will send.
Create a new WhatsApp Business account
1
Create the portfolio and account
In the respective fields, select Create a business portfolio and Create a WhatsApp Business account.
2
Complete the setup
Fill in all required fields and save.

Your WhatsApp Business account is ready. You can now connect it with Cal ID — see Connect with WhatsApp Business app.