QB won't let a new user access QBO when I send her an invitation from Manage Users. It says "Your Administrator has not granted you access to Quickbooks Online Plus"

Hello there, @Mechantek1.

Let me share with you some of my ideas about managing your account in QuickBooks Online. You can invite a user in QuickBooks once you logged in as an Administrator. I recommend contacting your system administrator to check the error.

I've also provided steps on how to add a user to your account. Here's how:

1. Go to the Gear icon.
2. Select the Manage Users tab. Note: If you can’t select this, you don’t have permission to manage other users. Contact an admin user for help.
3. Choose Add user.
4. Select the user type you want to create.
5. Enter your new user’s name and email address, then click Save.

For more steps, you can refer to this article: Add, delete, or change user access in QuickBooks Online

If you have follow-up questions, feel free to leave a message in the comment section. I'll be happier to help. Take care and have a great day!