Hi Scott29, you can review actions by different users in the Audit Log session of your QBO file. Here I found a link that might be useful for you:
Hope this helps.
Good day, Scott29.
It's possible that some users haven't created any transactions. Once a user created one, it will show on the Audit Log report.
I'll show you how it looks. You can refer to my screenshot below.
Reach out to us anytime if you have more questions.