Hello Can you help me to add user account?

Hi userghailan!

Yes, I can help you add a new user to your QBO company. Simply send them an invitation using the steps below. Then, they'll receive a link to accept the invitation. When they click on it, they'll be shown on-screen instructions to create an Intuit account.

1. Select Settings ⚙, then Manage users. 
2. Select Add user.
3. Select the user type you want to create.
4. Enter your new user’s name and email address, then select Save.

Here's an article for your additional reference: Add and manage users in QuickBooks Online.

If you have other questions in mind, you can always go back to this thread. Have a good day!