Step 1: Get values from Meta API Setup
- Open Meta Developers -> your app -> WhatsApp -> API Setup.
- Copy Phone Number ID (sender number identity).
- Copy WhatsApp Business Account ID (WABA ID).
- Generate or copy a valid Access Token for Cloud API calls.
- Add your recipient number in the To test numbers list and complete verification OTP.
- Keep this page open; you will reuse these values in later steps.
