Customer relationship management (CRM) systems are an essential tool for a business to have so that it can maximize its profit potential from the customers who have already interacted with it. The CRM system made by Close.io is an ideal solution for tracking all types of information. Customers who have signed up for email lists or deal information but who have not made a purchase yet could trigger the system to send out an introductory offer. The software made by Close.io could also be used to send reorder reminders to people who have not made another order in a while. The software is also useful for tracking buying patterns and purchase categories. IT can be used to predict what other items a customer might be interested in purchasing. The system can be set up to send email suggestions or recommended products when the customer logs into his or her account.