To track end customers under a reseller agreement or otherwise create subsets under a single customer, you can "split" a customer invoice into multiple customers and track each one separately.

To do this, go to the Customers tab and select the "split customer" button near the customer you wish to split (see screenshot below); then create a new customer for each end customer you wish to track.

To split a customer:  

1. Click the blue arrow next to the existing customer’s name to split the customer.
2. Create a name for the new/end customer who will hold this invoice.
3. Follow the screen prompts to move the invoice(s) to the new name.    

Once a customer is split, each customer name is counted separately in the summary data, both the number of customers and revenue.  This is designed to give you full control of tracking end customers or an umbrella reseller.

Hint: You can also use this button to rename an existing customer; just move all customer invoices to the newly created name.