MC1472547 - Microsoft Copilot Studio - Custom Grader Library
Microsoft 365 Message Center announcement MC1472547.
MS Message Center's Summary
Microsoft is introducing a public preview for the Custom Grader Library in Microsoft Copilot Studio starting mid September 2026. This capability lets makers build custom graders once and deploy them across multiple evaluations to reduce duplicate logic. Administrators should note that this feature is informational for now and requires no immediate steps.
- Administrator impact
- No direct administrator action is required.
- End user impact
- Makers can reuse custom graders across multiple evaluations to improve consistency.
- Importance
- 2/10: This is a standard preview feature release that brings minor enhancements with no administrative disruption.
- Message Center ID
- MC1472547
- Category
- stay Informed
- Severity
- normal
- Services
- Microsoft Copilot (Power Platform)
- Tags
- New feature
- Published
- 2026-09-15
- Last updated
- 2026-09-15
- Expires
- 2026-10-15
We are announcing the ability to create custom graders once and reuse them across multiple evaluations using Custom Grader Library in Microsoft Copilot Studio. This feature will be available in public preview on September 15, 2026. How does this affect me? Users will be able to create custom graders once and reuse them across multiple evaluations. Custom graders will become reusable evaluation assets, making reuse explicit and helping reduce duplicate grading logic. This will improve consistency across evaluations and support more reliable comparison and regression analysis over time. What action do I need to take? This message is for awareness, and no action is required.