Hey there, @Fuego. 

Yes, that's correct. You'll be able to see Manage Users under the "Your Company" section in your QuickBooks Online account. Below is a visual that can help. 

If you're still not able to see this option, let me know. If you're a standard user and not a Company or Master Admin, then this feature won't be available to you. Only Master Admins and Company Admins are allowed to invite users or accountants. Here's an article that can provide more information about user types and permissions in QuickBooks Online. 

It's my priority that you're able to invite your accountant in QuickBooks so that you'll be able to get back to running your business. I'm only a Reply away if you need me. Have a wonderful day!