The document outlines the top 10 mistakes businesses make during ecommerce re-platforming projects, emphasizing the need for a comprehensive 'integration first' strategy amid rising consumer expectations for seamless multichannel experiences. It highlights how complex ecosystems have evolved and stresses the importance of careful planning, goal prioritization, and cross-functional collaboration to navigate the challenges of re-platforming. By addressing these mistakes, organizations can enhance their project management and improve the likelihood of successful outcomes in their ecommerce initiatives.