Do you have a list of contacts in your business? It could be a software to help you keep track of your currently enrolled students, it could be that you keep a Google or excel sheet with all your contacts, or it could be that you have an email software that has a list of contacts in your business...
If you're a business that has a list of contacts that have interacted with your business, or you use software to keep track of your contacts, for example: keeping track of your currently enrolled students, leads, past students... Please move to the "yes" path of the flowchart
On the other hand, if you're a new business, or up until now, you haven't had software to keep track of all your contacts, please follow the "no" path.