This presentation will explore the challenges faced by both contractors and commissioning providers throughout the data center commissioning process and emphasize the critical role effective communication plays in overcoming these challenges. With construction delays and equipment supply chain issues, contractors encounter issues related to coordination of the critical systems serving data centers. Contractors and commissioning providers face challenges in obtaining essential information that cause additional delays and failure of the infrastructure. Drawing from successful project experiences, the presentation will highlight effective strategies to streamline communication, ensuring accountability across all stakeholders. Topics covered will include coordination mechanisms, communication pathways, scheduling optimization, and the exchange of critical documentation.