Why is my user not able to see clients in adding bills and expenses

Hi there, @George Michael.

Thanks for posting here in the Community today. It could be that your user is experiencing a browser-related problem. 

To confirm, let's use a private window. Then, troubleshoot the main browser to fix the issue. 

• For Internet Explorer of Firefox, press Ctrl + Shift + P.
• For Chrome, press Ctrl + Shift + N.
• For Safari, hold down Command + Shift + N.

If your user can now see clients while adding bills and expenses, let him/her clear the cache and cookies to resolve the problem. Otherwise,  use a supported, up-to-date browser.

For future reference, read through this article: Enter and manage expenses in QuickBooks Online. It'll help you learn about recording business expenditures to make sure they're added to your books. 

Let me know if you have additional questions, @George Michael. I'm always here t lend a hand.