2025-12-27

Fix Duplicate Customer Identity in Power BI and Fabric

The system never betrayed your data — it only obeyed it. The real problem begins the moment identity is treated as an assumption instead of a constraint. What looks like harmless flexibility at small scale quietly turns into structural uncertainty as data grows, sources multiply, and systems change. Business keys such as emails, customer IDs, or composite identifiers were never identities; they are temporary labels tied to applications, policies, and human discipline. Once those labels leave their original systems, they decay. Duplicates become legal, conflicts accumulate, and ambiguity spreads through every join, aggregation, dashboard, and AI model. Nothing crashes, nothing alerts, and yet decisions drift further from reality. Attempts to repair this at the pipeline, notebook, or semantic layer only mask the problem, because application logic cannot survive concurrency, replay, or evol

Apple Podcasts · Spotify · YouTube · YouTube Music

Fix Duplicate Customer Identity in Power BI and Fabric (English)