Sometimes innovation is not a technology or product, it may be a business model. Think of Uber or Airbnb that created the whole new markets. Learn what business model is right for your startup.
Every business is about sales, but before you get to it, learn how to educate your potential customers about your product and get their feedback.
what are the best channels to get your customers through? How much does it cost? What is your CAC?
Thought your startup journey you have to track tons of different things from your customers growth to revenue. You will learn what metrics are important for your startup at each specific stage.