*For this entry exists the more relevant or more recent entry MC424414
check before: 2025-10-12
Product:
Microsoft 365 admin center, Microsoft 365 Apps, Microsoft Viva, Microsoft Viva Engage
Platform:
Online, World tenant
Status:
Change type:
Retirement
Links:
Details:
Summary:
Access to legacy Viva Engage (Yammer) networks ends October 13, 2025. Networks not upgraded to Native Mode will become inaccessible and scheduled for deletion. Admins should verify and upgrade networks created before January 16, 2020, via the Engage admin center to avoid data loss.
Details:
Viva Engage (previously known as Yammer) networks are being upgraded. The retirement of 'legacy' networks and enforcement of mandatory upgrades were first announced via the Message center on September 1, 2022 (MC424414). Additional notification arrived via the Message center in 2023, 2024, and 2025, with Service Health Dashboard alerts indicating the need to upgrade networks as soon as possible.
Legacy networks that have not upgraded will become inaccessible to users on October 13, 2025.
Change Category:
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Scope:
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Release Phase:
Created:
2025-10-07
updated:
2025-10-07
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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Last updated 4 weeks ago ago
