Starting around mid-2025, Microsoft began rolling out enhanced semantic indexing for Dataverse Search. Even if you didn’t explicitly enable Copilot features, this indexing may have been automatically activated in your environment to support future AI-powered experiences like Copilot Studio, Sales Copilot, A and others B.
• Adds AI-style indexes to your Dataverse Search table.
• Increases storage usage significantly — some users reported jumps from 3.5 GB to 18 GB in production A environments.
• May not affect test environments if the rollout hasn’t reached them yet.
How to Investigate Further
1. Check Feature Rollout Timing
• Visit the Microsoft 365 Message Center and look for posts about Dataverse Search enhancements around April–July 2025.
• Confirm if your environment was part of the rollout.
2. Compare Environments
• If you have a test or dev environment cloned from production, compare the Dataverse Search table size.
• If the test environment is smaller, it likely hasn’t received the enhanced indexing yet.
3. Review Search Configuration
• Go to Power Platform Admin Center (PPAC) → Environment → Settings → Product → Features.
• Look for Dataverse Search settings:
◦ You may be able to disable enhanced indexing if not needed.
◦ Note: Disabling may affect Copilot and global search experiences.
4. Use Telemetry Tools
• Consider using Microsoft Power Platform telemetry via Azure Monitor or Application Insights (if enabled).
• These tools can help trace which tables or operations triggered indexing changes.
5. Open a Microsoft Support Ticket
• If the increase is unexplained and persistent, Microsoft support can provide backend diagnostics not visible in PPAC.
Remember:
Even if Copilot features aren’t actively used, Dataverse Search indexing may still run to prepare for future AI experiences. You can manage this proactively by adjusting search settings or limiting searchable columns.
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