Team members can be put across sites.
To correctly add staff across multiple teams so they can log in with one account, staff names and email addresses should be identical so the system can link them together.
Then the staff member should log out of FMS and hit the reset their password link. They can reset their password to whatever they want and should then be able to see both teams when they log back in.
Please go to the findsmyshift.com/help page and contact the help team if problems continue.