Hello there, @Vtori67. I understand the importance of a seamless process when inviting employees to QuickBooks Workforce.

Before anything else, I'd like to ask for a screenshot of the message you encounter. With that additional context, I could provide more alternative solutions. 

In the meantime, to fix the error message you've encountered, let's open your QuickBooks account in a private window to rule out any browser-related issues. Here are the keyboard shortcuts:

• Google Chrome and Microsoft Edge: Ctrl+ Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Safari: Command + Option + P

If you can invite your employees and the message does not appear, return to your regular browser and clear your cache. Occasionally, the accumulated cache and cookies in the system can become outdated or corrupted, leading to unexpected behaviours. You can also switch to other installed supported browsers, which is a good alternative.

Moreover, your employees can easily update and manage their personal information in QuickBooks Workforce. They can add new data, such as name, address, phone number, or email address. This feature is handy for employees who need to keep their details up to date.

On the other hand, if you want to gain insight into your business transactions, you can generate various reports in QuickBooks Online. 

You can return here whenever you require my assistance inviting your employees to QuickBooks Workforce. I'm always available and ready to assist you.