1. DIRECT ACCESS:
If you have a good and direct connection to Facebook, you can access the WhatsApp API with your own IT infrastructure, your own servers and the corresponding software or CRM integration. Suitable for companies with very individual requirements and many developer resources.
2. API PROVIDER INTERFACE:
Working with a WhatsApp business solution provider involves fewer requirements for the company's IT infrastructure. However, corresponding IT resources and a team of developers are still required.
3. PROFESSIONAL SOFTWARE-AS-A-SERVICE:
Another option is to use the services of a software-as-a-service provider. Then a fast and data protection-compliant use of the WhatsApp Business API is possible without having to have specific IT resources.