Hi there,
Welcome to the Community. QuickBooks allows you to enter a payee when when creating an expense. Rest assured, I'll be glad to share more info so you're on the right path.
To get started, I encourage you to check out the following article as it shows you how to: Enter and manage expenses in QuickBooks Online. In case the option to enter a payee isn't showing, I suggest clearing cache and cookies on your browser. Clearing cache and cookies helps with fixing most browser issues that you may be experiencing. Here's an article that shows you how to: Clear Cache and Cookies.
Give this a try and let me know what happens. I'll be here in case you have other questions.