On the Staff > List page, if a staff member doesn't have a Last Login date set, it means they haven't accepted their invitation to join your account and set a password.
If they have never logged in before, simply click their name to access their details page.
Once there, click 'Resend Invitation' on the right-hand side of the screen.
Alternatively, you can simply email the invitation link to your staff member. You can access this link in Account > Settings. Click on 'Copy to Clipboard' as highlighted below and paste into an email to your staff member.
Further Reading
For further assistance with Resending Invitation to Staff Members, please contact our Support team using online chat when you're logged into ShiftCare or email our Support team at support@shiftcare.com.