Clock procedures on Enterprise POS cover the terminal sign on, the labour clock and the drawer handoff, and they usually happen in one sequence at the start of a shift.
Signing out of the terminal releases the till. Clocking out ends the labour record. They are separate actions and staff need to do both, in that order, or the labour report will not match the schedule.
Clock Procedures: sign on, sign out, change PIN, confirm drawer assignment, clock in, clock out, start and end break.
Source: Global Payments / Xenial Enterprise POS product documentation. Enterprise sites are heavily configured, so confirm the exact behaviour against the customer own build before advising a change.