OneDrive: Sync Support for up to 1 million items on Windows

Originally posted by Microsoft Apr 23, 2026 Uncategorized 0 Comments

OneDrive Sync supports syncing up to 1 million items on Windows devices, helping teams manage large document libraries and shared content at scale without compromising access across devices. This preview requires the Insiders ring and that devices meet minimum hardware and configuration requirements. Devices that don’t meet these requirements continue to sync at the existing 300,000-item supported limit with no disruption.

Product	OneDrive
Release phase	Preview
Release date	December CY2026 Preview date: April CY2026
Platform	Desktop
Cloud Instance	Worldwide (Standard Multi-Tenant), GCC, GCC High, DoD
Created	2026-04-22 23:30:25Z
Roadmap ID	560549
Roadmap Link	https://www.microsoft.com/microsoft-365/roadmap?id=560549