check before: 2026-05-04
Product:
Exchange, Outlook, Purview, Purview Communication Compliance
Platform:
Online, Web, World tenant
Status:
In development
Change type:
New feature, User impact, Admin impact
Links:
Details:
Summary:
Azure PST Import enables Microsoft 365 admins to import PST files from Azure Blob Storage into Exchange Online mailboxes using PowerShell. The process includes endpoint creation, readiness analysis, import execution, and cleanup. It ensures compliance with existing retention policies and audit logging, with no direct user impact.
Details:
[Introduction]
Azure PST Import provides a structured, PowerShell-based way for administrators to import PST files stored in Azure Blob Storage into Exchange Online mailboxes, which are commonly used to store archived Outlook mailbox content. This capability helps organizations migrate historical email data in a controlled and auditable way by validating readiness before importing and by providing reports throughout the process. The process starts by creating an Azure PST Import endpoint to establish the connection between Azure storage and Exchange Online. Administrators then run a migration batch in Analyze mode to review readiness and validate the input before proceeding. Once the analysis results are reviewed, they use those results to create and start the import batch, which begins importing the PST files into the specified mailboxes.
This message is associated with Microsoft 365 Roadmap ID 557559.
[When this will happen]
Global rollout
Start: May 4, 2026
Complete: May 15, 2026
Change Category:
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Scope:
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Release Phase:
General Availability
Created:
2026-04-16
updated:
2026-04-16
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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linked item details
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summary for non-techies**
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Direct effects for Operations**
Data Import Process Complexity
Without proper preparation, the complexity of the PowerShell-based import process may lead to errors during the migration, resulting in delays and potential data loss.
- roles: Microsoft 365 Administrators, IT Support Staff
- references: https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=557559
Compliance Risks
If the import process is not properly validated, there may be compliance risks related to data retention policies and audit logging, potentially leading to legal issues.
- roles: Compliance Officers, Data Protection Officers
- references: https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=557559
User Experience Disruption
Although the change is admin-driven, improper execution of the import could lead to temporary unavailability of mailboxes, negatively impacting user access to email.
- roles: End Users, Help Desk Staff
- references: https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=557559
Configutation Options**
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Opportunities**
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Potentional Risks**
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Data Protection**
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IT Security**
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Hypothetical Work Council Statement**
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DPIA Draft**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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