Power BI consulting often face challenges related to handling large datasets, optimizing dashboard performance, and ensuring data security. Managing expectations and translating complex business requirements into actionable data models can also be difficult. Additionally, integrating data from multiple, often siloed, systems presents technical challenges. Ensuring that Power BI solutions scale effectively while maintaining performance is another common issue, especially as data grows. Finally, educating and supporting end-users to ensure adoption and understanding of the tool can be challenging, requiring consultants to offer thorough training and ongoing assistance.