check before: 2026-04-01
Product:
Purview, Purview Communication Compliance, Purview Data Lifecycle Management
Platform:
Online, Web, World tenant
Status:
In development
Change type:
New feature, User impact, Admin impact
Links:
Details:
Summary:
Microsoft Purview introduces a built-in migration tool in Unified Catalog for Data Governance Admins and Stewards to migrate classic glossary terms, templates, and relationships. Migration begins public preview in April 2026 and general availability in July 2026. Classic terms become read-only post-migration or switch.
Details:
[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 will begin rolling out in early July 2026 and expect to complete by early July 2026.
Change Category:
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Scope:
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Release Phase:
General Availability, Preview
Created:
2026-04-15
updated:
2026-04-15
Public Preview Start Date
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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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Pictures
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summary for non-techies**
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Direct effects for Operations**
Migration of Classic Glossary Terms
If the migration is executed without proper preparation, it may lead to data loss or misalignment of glossary terms, affecting data governance and compliance processes.
- roles: Data Governance Admins, Data Stewards
- references: https://learn.microsoft.com/purview/unified-catalog-glossary-terms, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=558683
Read-Only Status of Classic Terms
Post-migration, classic glossary terms will become read-only, which may disrupt workflows that rely on editing these terms, leading to confusion and inefficiencies.
- roles: Data Governance Admins, Data Stewards
- references: https://learn.microsoft.com/purview/unified-catalog-glossary-terms, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=558683
User Experience with Unified Catalog
Users may face challenges in adapting to the new Unified Catalog if migration is not well communicated, leading to decreased productivity and potential errors in data management.
- roles: Data Governance Admins, Data Stewards
- references: https://learn.microsoft.com/purview/unified-catalog-glossary-terms, https://www.microsoft.com/microsoft-365/roadmap?filters=&searchterms=558683
Configutation Options**
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Opportunities**
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Potentional Risks**
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IT Security**
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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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