Good day, @Caseworx-01.

Can you please tell me which steps are you trying to follow in this thread? It would also be great if you could share with us a screenshot of the window where you want to sort your customer list. This way, we can provide you with the appropriate troubleshooting steps to address your concerns in QuickBooks.

Any additional info would be much appreciated. Please add your details to this thread and I'll be more than happy to help. Have a good one.