A: No this is not Meta API.

Please follow below guidelines for sending messages:-

Sharing the guidelines again here for your reference:
- Send utility-focused and valuable updates only to users who have opted in.
- Personalise each message (e.g., “Hi Anurag—you’d asked about the Ignite video, so here it is.”).
- Send helpful content, reminder, confirmation instead of generic promotions.
- Send <150-200 message in a day from one number
- If you have completely new whatsapp number - Warm up the numbers for sometime before using it for campaigns