purview retention

Purview retention covers how Microsoft Purview policies preserve, retain, and delete content across Microsoft 365 workloads. The tagged discussion focuses on a coming change in which legacy Microsoft Teams retention policies will stop implicitly governing Microsoft 365 Copilot interactions in October 2026. Existing Teams policies that currently cover Copilot will be converted and treated as Teams-only, so Copilot prompts and responses fall outside those policies unless administrators configure a separate Copilot retention control. The practical takeaway for compliance and IT teams is to review Purview retention coverage now, confirm which workloads each policy actually applies to, and avoid assuming the change is only a naming cleanup.