Microsoft’s update to decouple Default Semantic Models is a push toward cleaner, purpose-built semantic layers rather than auto-generated artifacts. This guide walks teams through exactly how to inventory, rebuild, and govern their models so they’re ready for the November 30, 2025 transition and better positioned for long-term Fabric success.

Fabric is sunsetting default semantic models—a welcome change for teams long frustrated by workspace clutter and limited modeling capability.