Enhanced eDiscovery Premium APIs

Enhanced eDiscovery Premium APIs are being upgraded from Beta to V1, introducing new parameters and export structures to improve search accuracy and streamline workflows. The rollout will be completed by late August 2025. Admins and developers using these APIs must review the updated documentation and communicate changes to relevant teams.

What and Why

To align with the updated Microsoft Purview eDiscovery (Premium) user interface, several eDiscovery APIs are being enhanced and promoted from Beta to V1. These updates introduce new parameters and export structures that improve search accuracy, provide deeper insights, and streamline workflows for compliance and legal teams. This change is based on customer feedback and aims to deliver a more consistent and powerful experience across UI and API surfaces.

Rollout Schedule

• General Availability (Worldwide): Rolling out now – Early August 2025
• General Availability (GCC, GCC High, DoD): Rolling out now – Late August 2025

Impact on Your Organization

Who is affected: Admins and developers using Microsoft Purview eDiscovery (Premium) APIs in automated workflows or custom integrations.

What will happen:

• The following APIs will move from Beta to V1 and become generally available:
  • Search Estimate Statistics
  • Search Export Report
  • Search Export Result
  • Search Add to ReviewSet
  • ReviewSet Export
• New parameters added to Search Estimate Statistics API:
  • includeRefiners
  • includeQueryStats
  • includeUnindexedStats
  • advancedIndexing
  • locationsWithoutHits
• New parameters added to ReviewSet APIs:
  • CloudAttachmentVersion
  • DocumentVersion
  • ItemsToInclude
  • Additional data options: AdvancedIndexing, HTMLTranscripts
• Export structure updated to align with the new Purview portal experience.
• All other APIs remain unchanged.

Action Required/Recommendations

• Review the updated API documentation and parameter changes. All details are found below, and these will be moved to Live documentation by July 24, 2025
  • Search Estimate Statistics - ediscoverySearch: estimateStatistics - Microsoft Graph beta | Microsoft Learn
  • Search Export Report - ediscoverySearch: exportReport - Microsoft Graph beta | Microsoft Learn
  • Search Export Result - ediscoverySearch: exportResult - Microsoft Graph beta | Microsoft Learn
  • Search Add to ReviewSet - ediscoveryReviewSet: addToReviewSet - Microsoft Graph beta | Microsoft Learn
  • ReviewSet Export - ediscoveryReviewSet: export - Microsoft Graph beta | Microsoft Learn
• Communicate these changes to development and compliance teams.
• Refer to the Export reference for eDiscovery | Microsoft Learn

Compliance Considerations

Compliance Area	Explanation
Alters how existing customer data is processed	Yes – New parameters such as advancedIndexing and includeUnindexedStats change how search and indexing are performed on customer data.
Modifies eDiscovery or Content Search	Yes – Enhancements to search, review set, and export APIs directly affect eDiscovery workflows.
Includes admin control	Yes – Admins must update API usage and workflows to incorporate new parameters.