Before applying for the
WhatsApp Business API, there are three main requirements in addition to your business registration:
1. A Business Website with Complete DetailsYour website should clearly display your business's legal name, preferably in the footer. This ensures Facebook can verify your business identity during the API approval process.
2. A Fresh Phone NumberThe number you plan to use for WhatsApp Business API must not be currently registered on any WhatsApp app. A “fresh number” is required to avoid conflicts with existing WhatsApp accounts.
3. Official Business DocumentationYou will need a valid legal document for your business, such as a
GST certificate, MSME registration, or incorporation certificate, to verify your organisation.