1. Verify Your Facebook Business
Before accessing the API, you must verify your business in the Facebook Business Manager. You'll need legal business documents like a certificate of incorporation and proof of address. Meta typically reviews these within 1-3 business days.
2. Connect a Phone Number
You need a clean phone number that is not currently registered with the regular WhatsApp consumer app or the WhatsApp Business App. If it is, you must delete the account first before connecting it to the API.
3. Create Your WhatsApp Profile
Once connected, fill out your business profile with your display name, website, address, and business description. Note that your display name must clearly represent your business and match your legal name or known branding to get approved by Meta.