About the Tech Provider Program
This program enables you to integrate with Whatsapp API solutions directly, providing a structured way to onboard and manage your customers. By becoming a Meta Tech Provider, you can offer your customers a seamless experience while leveraging the power of Whatsapp Business API and gain access to Meta's advanced features.
As an approved Meta Tech Provider, businesses can:
  • Manage multiple Whatsapp Business Accounts: You can manage multiple Whatsapp Business Accounts for your customers, allowing you to offer a more comprehensive service.
  • Access to advanced features: Tech Providers have access to advanced features such as message templates, analytics, and reporting tools, which can help businesses optimize their messaging strategies.
See the Whatsapp Business API for more

Also see: https://developers.facebook.com/docs/whatsapp/solution-providers/get-started-for-tech-providers