This study examines the effects of salespeople's social media and customer relationship management (CRM) technology use on value co-creation through knowledge and the downstream impact on sales performance. Based on task-technology fit and self-determination theories, the findings reveal that social media, CRM technology, and their interaction support salespeople in their value co-creation efforts through the mediating role of knowledge enriched by these tools. The results indicate a significant moderating effect of salesperson job autonomy and sales quota ease in enhancing the relationship between knowledge and value co-creation. The study concludes by discussing important implications that stem from our analyses.