How can I get a list of all sub customers?

Good day, userjane.

There's no specific list or report for sub-customers in QuickBooks Online. Both main and sub-customers are listed in the Customers tab in the Sales menu and the Customer Contact List report. You can export these lists to Excel where you can add more filters or remove the parent customers.

Here's how:

1. Go to the Sales menu and proceed to the Customers tab.
2. Click the Export icon in the upper-right hand corner.

Sub-customers have the Colon punctuation mark ( : ) in between the name of the parent and sub-customers. Let me also share this article about exporting data for more details: 

• Export Reports, Lists, And Other Data From QuickBooks Online
• Export Your Reports To Excel From QuickBooks Online

The Community is always here if you have follow-up questions. We're always here to help.