Got an error saying, choose an employee or supplier to create a time activity. It was after I entered all my time for a day

Hi userrgillen545,

Dealing with error message can be a time-consuming experience but don't worry, I'm here to help you reap the amazing benefits offered in QuickBooks. The program allows you to bring your financials into focus as this helps you scale your business with no hassle. 

According to the error you received, I trust that you're able to enter the time activities on your account. In case you need an article for reference, check out this article here for more helpful info on time activities. In the meantime, could I have you clear cache and cookies on your browser? This is a great way to refresh your browser allowing it to work more efficiently. Here's an article which shows you how to: Clear cache and cookies to fix issues when using QuickBooks Online. I encourage you to give that a try as this helps fix most minor issues the browser may be having. 

Let me know if this info helps. I'll be here in case you need me. :)