How many buyer personas should you create?

The number of buyer personas you create will depend on the specific needs and wants of your target market. However, it is generally advisable to create at least three buyer personas, as this will provide you with a better understanding of your target market's needs and wants.
Creating more than one buyer persona can be helpful when you are trying to understand different segments of the market. This can help you to make more informed decisions when developing your product or service. If the final consumer needs the approval of few others then each person involved in the decision to buy your goods/services is a different persona. You'll need different approaches to meet those objectives because they'll evaluate your goods/service using different standards.