MC1280564: Microsoft Purview Pauses Migration Tool for Moving Classic Glossary Terms to Unified Catalog

MWPRO IMPACT SCORE
OPERATIONAL IMPACT
19
0 25 50 75 100
LOW IMPACT • MONITOR ONLY
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Primary Audience

Tenant AdminsMicrosoft 365 AdminsSecurity TeamsCompliance TeamsIT ManagersService Owners
Why this score?
AI Confidence
HIGH
Enough detail is available to trust this assessment.
Assessment Reasoning
Microsoft announced that the Purview Unified Catalog migration tool rollout will not proceed. No immediate configuration or migration work is required, but admins should update internal plans and cancel any related project activities. Impact is low because the change is withdrawn before general availability, reducing operational urgency.
25
🛡️ Admin Impact
5
👥 User Impact
20
Urgency
15
🔧 Effort
ℹ️ WHAT YOU NEED TO KNOW
📌

AT A GLANCE

Microsoft has cancelled the plan to provide a migration tool for moving classic glossary terms to Unified Catalog. No further rollout will happen.
👥

END USERS

No major end-user change expected.
🛡️

IT ADMINS

No immediate admin action required.
📅

ROLLOUT TIMELINE

Past:
Cancelled

📢 Official Microsoft Message Center Announcement


(Updated) Microsoft Purview: Migration tool in Unified Catalog to migrate classic glossary terms
Message ID: MC1280564 (Updated)

Updated August 7, 2026: We have decided not to move forward with this change at this time. We apologize for any inconvenience. 

[Introduction]

Data Governance Admins and Data Stewards can use a built‑in migration tool in Microsoft Purview Unified Catalog to migrate classic glossary terms, associated term templates, and asset and column relationships into Unified Catalog. After migration, glossary terms can be managed in Unified Catalog and associated with business concepts and data assets.

This message is associated with Microsoft 365 Roadmap ID 558683.

[When this will happen]

  • Public Preview: We will begin rolling out in late April 2026 and expect to complete by late April 2026.
  • General Availability (Worldwide): We have decided not to move forward with this change at this time. We apologize for any inconvenience. 

[How this affects your organization]

Who is affected

  • Data Governance Admins
  • Data Stewards
  • Organizations using classic glossary terms in Microsoft Purview, along with Unified Catalog

What will happen

  • Admins can choose to use the built‑in migration tool to migrate classic glossary terms to Unified Catalog.
  • Migration includes:
    • Classic glossary terms
    • Associated term templates
    • Asset and column relationships
  • Admins who do not need migration can skip the process and use glossary terms only in Unified Catalog.
  • In both cases, classic glossary terms will become read‑only.
  • After migration or switching, Unified Catalog glossary terms can be used to curate assets and columns.

user settings

user settings

[What you can do to prepare]

  • Determine whether your organization uses classic glossary terms.
  • Decide whether to:
    • Migrate classic glossary terms to Unified Catalog, or
    • Abandon classic glossary terms and use Unified Catalog glossary terms only.
  • If you choose migration:
    • Review the detailed migration documentation.
    • Plan and execute the migration when your organization is ready for all required steps.

Links to detailed migration documentation will be added to the Unified Catalog glossary terms overview documentation when the feature enters public preview.

[Compliance considerations]

QuestionAnswer
Does the change alter how existing customer data is processed, stored, or accessed?Yes. Classic glossary terms, associated term templates, and asset and column relationships may be migrated and stored in Microsoft Purview Unified Catalog instead of the classic glossary location.
Does the change include an admin control?Yes. Data Governance Admins choose whether to migrate classic glossary terms using the built‑in migration tool or skip migration and switch to Unified Catalog glossary terms.

Source: Microsoft Message Center • Analysed by MWPro

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