Yammer will no longer support multiple non-external networks within a single tenant, aligning with Microsoft 365. Automated network consolidation will occur from May 1, 2023, to mid-March 2025, resulting in the loss of secondary networks' groups and data. Users should export data and can self-initiate consolidation.
Applies to: Microsoft Viva
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).