Absenteeism is the frequent or habitual absence of an external workforce member without valid reasons, leading to disruptions in workflow and potential delays in project delivery. Unlike a one-time absence, absenteeism indicates a pattern that may stem from dissatisfaction, lack of engagement, or personal challenges.

In external workforce management, absenteeism is a critical issue as it can erode trust and increase operational costs. Organizations combat absenteeism by identifying its root causes through feedback mechanisms, offering flexibility where possible, and creating policies that encourage accountability. Proactive engagement and recognition of external workers' contributions also play a significant role in reducing absenteeism and fostering a reliable workforce.