Hi martineuropa-uk-,

Thank you for reporting about the broken link on the user invitation email you sent.  Let's check to see what's going on.

Something might have happened on the email you sent, so it's worth to try sending once more. Jus remove the pending invitation, and send another one. However, If it's the same thing, you can send one to a different person you trust to see if the behavior is just happening to one email or not.

If the above instructions do not work, please have the recipient do the initial troubleshooting steps, like opening the link using a private or incognito browser and clearing the cache if that doesn't work. 

Keyboard shortcuts for opening a private window:

• Safari: Command + Shift + N
• Google Chrome: CTRL + Shift + N
• Microsoft Edge: CTRL + Shift + N
• Mozilla Firefox: Shift + ⌘ + P (on macOS) or Shift + CTRL + P (on Windows/Linux)

Please don't hesitate to go back to this thread if you have additional questions. I'll be happy to help you again.

Hi Gary, thanks for joining this thread

We don't currently have any reported issues accepting invites for QuickBooks Online. 

Please copy the link (open the email with the invite and right-click on Accept Invitation) and paste this into a private browsing window. 

If you're still unable to accept the invite from here, please have a user with access to the QuickBooks account delete the invite (from the Action column, select the small arrow ▼ icon and then select Delete. If they see any duplicate invites, also delete those). They can then re-send an invite to you. 

Please note that the QuickBooks subscription will need to be active to accept the invite and invites expire after 30 days.