This is unusual, Mvsl.

I'm here to ensure you can view the Manage users button.

Beforehand, may I know what you're seeing on the Settings page? Adding a screenshot would be a great help, too.

To help you view and access the tab, I've added steps and a screenshot below.

1. Login to QuickBooks Online as a primary admin.
2. Click the Settings icon.
3. From the pop-up, select Manage users.
   

To fix this, I recommend logging out and logging back into QuickBooks Online (QBO). Doing so refreshes your account for the updates to take effect. 

If this isn't the case, I suggest accessing your account using a private window. This way, we can determine whether this is a browser cache-related issue. The browser utilizes cached data to load web pages quickly. However, excessive cache can lead to problems that impact the appearance and functionality of your account.

An incognito mode helps us verify the issue since this doesn't save any files. Here are the keyboard shortcuts: 

• Safari: Command + Shift + N 
• Google Chrome: CTRL + Shift + N
• Mozilla Firefox or Microsoft Edge: CTRL + Shift + N

If the Manage users show, clear the browser's cache. Doing so deletes all the data from your browser and optimizes its performance. Using other supported browsers also helps us verify if this is a browser-specific issue. 

I'll be around if you need more help managing your users with your QuickBooks Online, Mvsl. Keep me in the loop by tagging me in your reply. Keep safe!