If you want to track your customer purchase history, you can do so by assigning them to their cart. Here's how:
Step 1: On an open cart, click 'Customers'.
Step 2: Search for an existing customer or add a new one
Step 3: Select the customer you want to assign. You can also see the customer's details such as purchase history, average transaction, last visit, etc.
Step 4: Once the customer is added, you can select them and they will appear on the cart
See how it's done in our video tutorial below: