The WhatsApp Business API is Meta's official interface for businesses. It has no app of its own: you connect it to a platform like Dealup, which provides the inbox, the campaign tools and the automation.
What it gives you
- Several people answering one number at the same time
- Approved templates for messaging customers first
- Automation, chatbots and routing
- Integrations with your store and CRM
- Reporting on delivery, replies and outcomes
What it requires
Every message you start must use a template Meta has approved in advance. Once a customer replies, a 24-hour window opens in which you can answer freely. That constraint is what keeps the channel clean, and it is the main difference from SMS or email.