Time Between Purchases metric is the average number of days a customer takes between making two purchases, when looking at the past 365 days.
TBP= 365/(Number of orders in past 365 days/number of unique customers in past 365 days)
The Time Between Purchases segmentation only include customers whose first purchase was made with that segment, for example a specific product or from a specific state.
This is an important retention metric because it shows you how happy your customers are with your product and it helps you understand how often your customers make purchases. You can use this insight to reach out to your customers at the right time to try to get them to purchase again.
Watch a quick video that explains this metric in less than 2 minutes.