Thanks for checking in with us, ryannguyen. 

We currently have an ongoing issue with multi-user errors after upgrading to QuickBooks Desktop 2022. This is caused by the missing Database Server Manager. Rest assured, our product engineers are working together on a permanent fix on this issue.

While we're still fixing this issue, we can try uninstalling the version installed on the server computer as a workaround. If the QuickBooks Server Manager version 2022 is nowhere to be found after uninstalling the prior version, just perform a manual clean install on QuickBooks 2022 to fix it.

To ensure you'll get an update about the resolution status, I'd suggest contacting our Technical Support Team. They'll pull up your account in a secure environment and add you to the list of affected users. This way, they can add your company to the list of affected users and provide this investigation number for easy tracking: INV-63789.

You may send a message via chat, call us at a time convenient to you, or we’ll get in touch with you instead. To ensure we address your concern, our representatives are available from 6:00 AM to 6:00 PM on weekdays and 6:00 AM - 3:00 PM on Saturdays, PST. See our support hours and types for more details about this one.

To learn more about multi-user mode, here's an article you can refer to for more details about hosting your company data in multi-user mode in QuickBooks Desktop.

If you need to take care of other things in QuickBooks, I'm with you every step of the way. Just leave a comment below and I'll get back to you. Take care always.