What and Why:
We are updating the data retention period for Microsoft Enterprise Content Delivery Network (eCDN) analytics from 360 days to 180 days. This change aligns with enterprise-ready data governance practices across Microsoft 365, helping organizations maintain compliance while ensuring analytics data is retained for a duration appropriate for operational insights and reporting needs.
Rollout Schedule:
- Effective date (Worldwide, GCC, GCC High): July 27, 2026
Impact on Your Organization:
Who is affected: Admins and users who rely on Microsoft eCDN analytics reporting
Platforms/Services: Microsoft eCDN analytics (web-based reporting and dashboards)
What will happen:
- Analytics data will be retained for up to 180 days from the time of generation.
- Data older than 180 days will be automatically deleted and no longer accessible.
- The updated retention policy will apply tenant-wide.
- There are no changes to how data is collected or surfaced, only how long it is retained.
- The change is enabled by default with no admin configuration required.
Action Required / Recommendations:
No immediate action is required.
- Review any reporting or analytics workflows that rely on data older than 180 days.
- Update internal processes or dashboards to ensure necessary data is exported or archived before July 27, 2026.
- Notify stakeholders who depend on long-term analytics trends.
- Update internal documentation or reporting guidelines as needed.
Compliance considerations:
| Area |
Explanation |
| Data processing, storage, or access changes |
The retention period for eCDN analytics data is reduced from 360 days to 180 days, changing how long data is stored and accessible. |
| Retention policies, holds, or deletion workflows |
The change enforces a shorter system-level retention window, resulting in earlier automatic deletion of analytics data. |
| Admin monitoring and compliance reporting |
Admins will have access to a shorter historical analytics window, which may affect long-term reporting and compliance evidence collection. |