One 4 week Cycle

For casual team members, how the 4-week roster cycle works in UKG Pro.

1. How do we know exactly when the 4-week cycle starts?

2. Does UKG Pro show the 4-week cycle for casuals anywhere in the app?

3. Will the system block a manager from doing a shift edit for a 21st start? If they try to add a 21st shift in a cycle, does UKG physically block them from saving it, or will it let them publish it anyway?