We're updating dynamic distribution groups (DDGs) in Exchange Online to make group membership available sooner after creation or a filter change. For DDGs with 5,000 members or fewer, membership is now populated as part of the creation or modification operation — no more waiting up to 2 hours.
Roadmap › 560550
Exchange: Dynamic distribution groups now populate membership faster on creation and modification
- General availability
- 2026-05
- Preview
- —
- Added
- 27 Apr 2026
- Last modified
- 05 Jun 2026 22:00 UTC
- First archived
- 25 Aug 2026
- Release rings
- General Availability
- Clouds
- Worldwide (Standard Multi-Tenant)