It depends on how your business is structured.

If you own all the locations:

Use a single WhatsApp Business API number. One number gives your team access to the complete customer conversation history and makes it easy to route chats to the right branch when needed. It also ensures a consistent customer experience instead of each location managing WhatsApp differently.

If you operate a franchise model:

Use a separate number for each franchise. Every franchise owner manages their own customers, bookings, and support. Sharing one number would mix conversations across independent businesses and make accountability difficult.

If you have a dealer network:

Use dealer-specific numbers. The same principle applies. Each dealer has its own customer base, sales pipeline, and support team. Separate numbers give each dealer full control over its customer conversations.

The Key Takeaway:

Your WhatsApp number strategy should follow your business structure—not the number of locations. If one company owns the customer relationship across all locations, a single number is usually the best choice. If each location is independently owned or operated, each should have its own WhatsApp Business API number.