If I Click on the Sales menu at the left pane, then Customers. the customer list doesn't populate as it has in the past did they change something?

Hi gord1,

Welcome to Community.  It's vital that you have full access to your customers so you can perform your daily tasks and move on to better things.  When this type of issue happens with QuickBooks Online, it's most often a connection issue.  I'd be happy to guide you through some steps to get you back to business!

The first recommendation is to log out of your account and then clear cache on your browser.  When you're ready to login, open your browser in private or incognito.  If the same issue occurs, try other browsers such as Google Chrome, Safari, Firefox or Edge.  This should get you up an running with the ability to access your customer list.

Should you require additional assistance, I'd recommend that you touch base with our Support Team.  They'll have the ability to work with you in a secured environment and dig deeper into the cause of this behavior to get this resolved in a timely fashion.

Schedule a Callback or start a Chat: Select the ? in the upper right of your account > enter "Contact Support" into the QB Assistant > click Contact Us > explain your situation > hit Let's Talk > choose Get a callback or Start a Chat.
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Support hours are from Monday to Friday between 9 a.m. and 8 p.m. ET.

If you have any other questions, please reach back out.  We'd be glad to assist!