Welcome to the Community space, @glanza.
I understand the importance of having a reliable source of information and how links and websites must function accordingly.
Upon checking here on my end, we have an ongoing investigation about invalid invitation links in the Outlook desktop app. We recommend contacting our Support Team. This way, you'll be added as one of the affected users so that you'll be notified about its status.
Here's how to contact us:
- Go to the Help icon, then select the Search tab.
- Choose Contact Us.
- Enter a brief description of your situation in the What can we help you with? field.
- Click Continue, then choose Chat or Callback.
To ensure you can reach our support team on time, refer to this article: QuickBooks Online (QBO) Support.
Occasionally, links on support websites are updated or redesigned. QBO doesn't have control over these changes.
Since you were unable to locate the support websites, we can use these links as a workaround if you're trying to access your Intuit account:
If you're accessing another support website, may I know what specific website? This way, I'll be able to provide you with accurate resolutions.
In addition, you can also read this article about the maximum accounts or users you can add in QBO: Usage Limits.
Rest assured that our engineers are working hard to resolve the issue. Let me know if you have more questions about accessing Intuit websites. We're always here to help. Keep safe!