In order to use the marketing templates through the WhatsApp Business API, you need to get access to the API. There are four options: 

 Set up your own IT infrastructure internally (essentially, you need to code your own software around the API). If you're looking at using other messaging apps like Telegram or Facebook Messenger, we recommend a unified API solution.

 Use the Meta cloud. You'll still need IT resources, but are more limited in customizations than setting up your own infrastructure.

 Use a ready-to-go messaging solution from an official Business Solution Provider like Sinch Engage.

Sinch Engage is an official Meta partner and authorized to offer messaging solutions to businesses for WhatsApp, Facebook Messenger, and Instagram Direct Messenger.

In addition, we also developed functionalities that you won't find on the Meta cloud, like an easy-to-build drag-and-drop chatbot, analytics tools for your campaigns, and we even have a GPT integration that'll help you set up broadcast messages faster. 

With our solution, you don't need to set up anything. We actually help you set up your account, and then you can start your campaigns immediately.

For more such interesting stuff, click on the link given below