check before: 2026-01-05
Product:
Purview, Purview Communication Compliance
Platform:
Online, World tenant
Status:
Change type:
Admin impact, Updated message
Links:
Details:
Summary:
Microsoft Purview Communication Compliance is undergoing an infrastructure upgrade from January 5 to April 15, 2026, causing temporary processing delays, intermittent errors, and possible outdated report data. No data loss will occur. No action is required, but admins should inform teams about these short-term impacts.
Details:
Updated March 4, 2026: We have updated the timing of this change below. Thank you for your patience.
[Introduction]
Microsoft Purview Communication Compliance is undergoing a scheduled infrastructure upgrade. Although this migration is planned outside of normal business hours, some production clusters may experience higher loads, potentially causing brief delays in downstream processing. Brief delays in processing may occur during this migration, but no data will be lost.
[When this will happen:]
This migration will begin January 5, 2026, and end April 15, 2026 (Previously February 28, 2026).
Change Category:
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Scope:
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Release Phase:
Created:
2026-01-07
updated:
2026-03-17
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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summary for non-techies**
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Direct effects for Operations**
Processing Delays
Temporary delays in processing policy insights and aggregated counts may lead to slower decision-making and response times for compliance teams.
- roles: Compliance Admin, IT Admin
- references: https://learn.microsoft.com/purview/communication-compliance
Intermittent Errors
Intermittent errors when reviewing flagged messages can hinder the ability of compliance teams to effectively monitor communications, potentially impacting compliance oversight.
- roles: Compliance Admin, IT Admin
- references: https://learn.microsoft.com/purview/communication-compliance
Outdated Report Data
Certain report views may display outdated data, which can mislead compliance assessments and reporting accuracy, affecting strategic planning.
- roles: Compliance Admin, Data Analyst
- references: https://learn.microsoft.com/purview/communication-compliance
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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change history
| Date | Property | old | new |
| 2026-03-17 | MC MessageTagNames | Admin impact | Updated message, Admin impact |
| 2026-03-17 | MC Summary | Microsoft Purview Communication Compliance will undergo infrastructure migration from January 5 to February 28, 2026, causing temporary delays, intermittent errors, and slower updates in policy insights and reports. No data loss will occur. No action is required, but admins should inform teams of possible short-term slowdowns. | Microsoft Purview Communication Compliance is undergoing an infrastructure upgrade from January 5 to April 15, 2026, causing temporary processing delays, intermittent errors, and possible outdated report data. No data loss will occur. No action is required, but admins should inform teams about these short-term impacts. |
| 2026-03-17 | MC Last Updated | 01/06/2026 23:48:36 | 2026-03-06T18:07:13Z |
| 2026-03-17 | MC Messages | [Introduction]
Microsoft Purview Communication Compliance is undergoing a scheduled infrastructure upgrade. Although this migration is planned outside of normal business hours, some production clusters may experience higher loads, potentially causing brief delays in downstream processing. Brief delays in processing may occur during this migration, but no data will be lost. [When this will happen:] This migration will begin January 5, 2026, and end February 28, 2026. | Updated March 4, 2026: We have updated the timing of this change below. Thank you for your patience.
[Introduction] Microsoft Purview Communication Compliance is undergoing a scheduled infrastructure upgrade. Although this migration is planned outside of normal business hours, some production clusters may experience higher loads, potentially causing brief delays in downstream processing. Brief delays in processing may occur during this migration, but no data will be lost. [When this will happen:] This migration will begin January 5, 2026, and end April 15, 2026 (Previously February 28, 2026). |
| 2026-03-17 | MC Title | Purview Communication Compliance: Temporary delays in processing due to planned infrastructure migration | (Updated) Purview Communication Compliance: Temporary delays in processing due to planned infrastructure migration |
| 2026-03-17 | MC End Time | 04/01/2026 09:00:00 | 2026-05-15T09:00:00Z |
Last updated 4 weeks ago ago