{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreieluvajjkcjsyablhxhtny3jrdnluvw3clnscjkdvrjwyzyblta6e",
    "uri": "at://did:plc:xxrzfynfiasdpbxteqxi4jgq/app.bsky.feed.post/3mkls7lrjn2o2"
  },
  "description": "OneDrive sync on Windows will support syncing up to 1 million items per device starting in Public Preview in late April 2026, benefiting users with large libraries. Devices not meeting requirements will remain at the 300,000-item limit. No disruption is expected, and no action is needed unless pa...",
  "path": "/m365-message-center/message/mc1294528/",
  "publishedAt": "2026-04-29T00:00:19.000Z",
  "site": "https://blog.tophhie.cloud",
  "tags": [
    "minimum requirements",
    "ideal state configuration",
    "How we release updates through multiple rings - The OneDrive sync app update process | SharePoint in Microsoft 365 | SharePoint | Microsoft Learn",
    "Recommended sync app configuration | SharePoint in Microsoft 365 | SharePoint | Microsoft Learn",
    "Restrictions and limitations in OneDrive and SharePoint | Other issues | Troubleshoot | OneDrive | Microsoft Support"
  ],
  "textContent": "**[Introduction]**\n\nOneDrive sync on Windows will support **syncing up to 1 million items per sync instance per device**. This increase is intended to help organizations with large OneDrive and SharePoint libraries sync more content reliably across devices. The capability is planned to be available first in **Public Preview** (requires the Insiders ring) and later in General Availability.\n\nDevices that do not meet the minimum hardware and configuration requirements will continue to sync at the existing **300,000-item supported limit** without disruption.\n\n**[When this will happen]**\n\n  * **Public Preview:** We will begin rolling out in**late April 2026** and expect to complete by **late April 2026**.\n\n\n\n**[How this affects your organization]**\n\n_Who is affected_\n\n  * Users syncing**OneDrive (consumer), OneDrive for Business** or **SharePoint document libraries** on **Windows**\n  * Users with libraries that approach or exceed the current **300,000-item** supported sync limit\n  * Preview participants using the**Insiders ring**\n\n\n\n _What will happen_\n\n  * Eligible Windows devices can sync **up to 1 million items per sync instance**.\n  * Devices that do not meet the requirements remain supported up to **300,000 items** with no change in behavior.\n  * No disruption is expected for existing sync setups.\n\n\n\n_**Note:** Performance is not yet optimized for syncing a high volume of read‑only files or for accounts under legal hold. Microsoft is actively working to improve performance and reliability for these scenarios._\n\n**[What you can do to prepare]**\n\nNo action is required if you do not plan to use Public Preview.\n\nIf you plan to evaluate or prepare for this capability:\n\n  * Identify devices and users likely to benefit from syncing very large libraries.\n  * Ensure devices meet the minimum requirements (supported OS, memory, storage, and processor).\n  * Verify the recommended ideal state configuration for OneDrive and SharePoint sync reliability.\n  * Inform helpdesk staff and impacted users that **Public Preview requires the Insiders ring** and that **ineligible devices will remain at the current limit**.\n\n\n\n**Learn more:**\n\n  * How we release updates through multiple rings - The OneDrive sync app update process | SharePoint in Microsoft 365 | SharePoint | Microsoft Learn\n  * Recommended sync app configuration | SharePoint in Microsoft 365 | SharePoint | Microsoft Learn\n  * Restrictions and limitations in OneDrive and SharePoint | Other issues | Troubleshoot | OneDrive | Microsoft Support\n\n\n\n**[Compliance considerations]**\n\nNo compliance considerations identified. Review as appropriate for your organization.",
  "title": "MC1294528: OneDrive sync supports up to 1 million items on Windows",
  "updatedAt": "2026-04-29T00:00:19.442Z"
}