The collaborative approach to innovation is crucial for sharing ideas, solving problems, and implementing new ways of working that rely on human creativity and communication. As generative AI (genAI) becomes increasingly integrated into work environments, understanding its role and implications in the innovation process becomes essential. The literature suggests that genAI can support creative processes by generating business ideas, but no research has examined in detail how genAI affects collaboration in innovation. Remarkably, rather than creating information overload, genAI promotes positive team dynamics and enhances the key elements of collaboration: Shared understanding, organization/structuring, and task execution. This paper uses a diary study to investigate the influence of genAI on creative processes, communication, and decision-making in teams and provides insights into the role of genAI in the innovation process.