Purpose This paper seeks to link conflict and mediation theory to practice using an asymmetry framework. Past conflict research often assumes that conflict parties perceive the same amount of conflict, neglecting that members may have different perceptions. Design/methodology/approach This study conducted surveys and interviews with 30 conflict parties involved in mediation and examined the effects of asymmetry of parties' perceptions of task and relationship conflict on absenteeism, motivation, and satisfaction with the mediation. In addition, mediator bias was considered as another asymmetry variable that influences mediation success. Findings Using quantitative and qualitative data it was found that these perceived asymmetries were negatively associated with work motivation and satisfaction, and positively associated with absenteeism. Originality/value Recommendations for mediators and organizations are provided.