It is customers who really create a business. Ideas and plans do not. Not even setting up an office with all needed facilities creates a real business. Only when you have your first paying customers can you say that you have a business.
Getting those first customers is typically one of the toughest tasks for most businesses. In today’s markets, there are established suppliers for practically everything and you will typically be just one of the many suppliers. Why should a customer buy from an unknown supplier with unknown capabilities?
Even if you are offering a completely new product or service with no competition, people tend to play safe and are hesitant to risk their money on something unproven.
Source: https://www.entrepreneurshipsecret.com/real-business/