Trimble Quadri Help
If you have received an invitation to join a project and get this error message when you try to accept, it can be because:
The invitation has been sent to another email address than the one you have registered your Trimble ID for. You have to ask to get a new invitation to the correct email address.
You are logged in with another Trimble ID than your own on the PC you are using. Go to [[https://np.trimble.com]], log out and then in again with your own Trimble ID.
You already have accepted the invitation. Just ignore the invitation and see if you can get access to the project.