What adjustment can managers make if the headcount is not correct before a shift starts?

The most appropriate adjustment for managers when the headcount is not correct before a shift starts is to upload Voluntary Extra Time or Voluntary Time Off. This option allows managers to manage workforce levels effectively by offering employees the choice to either take extra hours or to take time off if the headcount is too high or low.

By utilizing this approach, managers can optimize staffing levels while giving employees the flexibility to adjust their schedules according to the needs of the operation. This not only addresses the immediate staffing issue but also respects the preferences of the workforce, ultimately aiding in maintaining morale and productivity.

The other options may have their merits in different contexts, but they do not directly address the headcount discrepancy with the same level of flexibility and immediate effect. Reassigning job roles can be complex and may not resolve the issue of the correct number of employees needed for the shift. Communicating changes to associates is vital for operational transparency but does not rectify the headcount issue itself. Canceling the shift might be a last resort, but it could lead to disruption and dissatisfaction among employees, which is generally undesirable in a workforce management context.