We used a diary design and collected data among 82 dyads of colleagues (N= 164 employees) over 5 consecutive working days (N= 820). to explore examine whether (a) different job crafting dimensions have a differential impact on psychological detachment from work, (b) if specific joint effects can exacerbate or attenuate the negative impact of increasing challenging demands, and (c) whether job crafting crosses over between co-workers thereby creating indirect effects on psychological detachment.