The purpose of this study is to investigate the interactive effects of individual work autonomy and interdependence on collaborative planning, building on the distinction of task and outcome interdependence. Using a questionnaire study, we assess collaborative planning and its antecedents in supply chain relationships, incorporating the forestry and timber industry. While no interactive effects hold for task interdependence, outcome interdependence only facilitates collaborative planning for individuals with low work autonomy. Individuals with high autonomy always invest in collaborative planning. This study provides a picture of supply chain reality more complete than that sketched in studies that have assessed interdependence as a one-dimensional construct and alludes to the importance, often overlooked, of work autonomy in supply chain relationships.