Power BI consulting services often struggle with integrating diverse data sources, including on-premise databases, cloud services, APIs, and legacy systems. Each source may have different formats, refresh rates, access permissions, and quality issues, leading to inconsistencies. Additionally, data duplication, missing values, and schema mismatches create obstacles in building accurate reports. Power BI consulting services use data gateways, API-based extractions, and ETL processes to streamline integration. However, handling real-time data alongside historical records, managing large-scale transformations, and ensuring schema compatibility remain complex tasks that require continuous optimization and robust data governance strategies.
