It's a great idea to keep an eye on your customers and your business growth. With QuickBooks Online, you can easily generate a report showing a list of your customers that were created within a specific date range. To do so, follow these steps:
Select Reports
Scroll down to the Sales and customers section
Select Customer Contact List
Select the little gear icon in the middle of the page
Check the box next to Create Date
Select Customize
Select Filter
Select the drop down menu for Created Date, then pick Custom