We appreciate you for sharing your concern with us, Sales314. We recognize the importance of assigning sales representatives to customers for better tracking and reporting.
Currently, QuickBooks Online does not have a built-in feature that allows you to designate a sales rep directly within a customer profile under the Edit Customer section.
However, there is an alternative solution. You can use the Class or Location tracking features to monitor sales by region or sales rep. By assigning a class or location to your transactions, you can generate reports based on these categorizations.
Here's how to activate Class and Location tracking:
- Select the Settings icon and click on Account and Settings.

- Navigate to the Advanced tab and locate the Categories section. Click the Pencil icon to make edits.
- Enable Track classes and/or Track locations by toggling them on, then click Save.

Once this feature is activated, you can create classes and assign them to your transactions, making it easier to run reports based on these classifications.
You might want to consider exploring third-party applications that integrate with QuickBooks Online and offer more advanced features for managing customers and sales reps.
Also, learn how to customize and memorize your reports to streamline your reporting process:
If you have further questions or need more assistance, you can reply to this thread, and the Community team is always here to support you.