Customer: A person who purener: A person who purchases a commodity or service.
Client: A person who is under the protection of another.
If you use the word customers, that‘s fine. But always think of them as clients. And when you start to serve clients rather than sell clients, the limits on your business success will disappear. What exactly does "under your protection" mean? In this case it means that you don‘t sell them a product or service just so you can make the largest one-time profit possible. You mustunderstand and appreciate exactly what they need when they do business with you even if they are unable to articulate that need Once you know the final outcome they need, exact result themselves. Once you know the final outcome they need, you lead them to that outcome-you become a trusted adviser who protects them. And they have reason to remain your client for a lifetime.