Who needs to be notified of an employee's resignation?

Notifying Human Resources, the employee's direct supervisor, and relevant department heads is essential because these parties play key roles in managing the resignation process. Human Resources needs to update employee records, manage benefits, and ensure compliance with company policies. The direct supervisor must be informed to address workload transitions and team dynamics resulting from the departure. Additionally, informing relevant department heads ensures that any operational impacts can be addressed and contingency plans can be put in place.

The other options do not encompass the necessary parties involved in the resignation process. Informing just the employee's immediate coworkers or friends may limit the communication needed for an organized transition. While a farewell party could be a thoughtful gesture, it does not fulfill the formal notification requirements essential to maintaining company operations and compliance during an employee's departure.