![On-demand Index Life Cycle Change for SharePoint and OneDrive Search and Application Permission Based Requests [MC903620]](https://mwpro.co.uk/wp-content/uploads/2024/08/pexels-pixabay-158163-1024x683.webp)
We’re making some changes to on-demand indexes used to support SharePoint and OneDrive Search using Application Permissions. On/Starting November 1, 2024, if an on-demand index has not been queried in 100 days, the index will be decommissioned.
App-only permissioned requests (Search content with application permissions – Microsoft Graph | Microsoft Learn) may be created by custom applications using public Search APIs such as Microsoft Search Graph API or SharePoint Search REST API. This change will NOT affect normal user or delegated permissioned Search traffic from Enterprise Search endpoints (e.g., SharePoint, Teams, Outlook, Office.com, Bing@work, etc.), search-based web parts, or custom apps using the signed-in user’s permissions.
[When this will happen:]
Beginning November 1, 2024
[How this will affect your organization:]
Searching using Application Permissions is a latency expensive option. To make the process more efficient, when you run the initial search request and request private content, an on-demand index is provisioned to serve “private” results. The time required to build the index depends on the number of items in your users’ OneDrive and SharePoint. For a medium-to-large tenant, this may take days to a week to complete. Very large tenants will take longer. While the index is provisioning, search requests will only return shared and public content. Once the new index is complete, private and shared content will be returned. If no additional search requests for private content are sent within 100 days, the private index will be decommissioned. If needed again, a subsequent search request for private content will rebuild the index.
[What you need to do to prepare:]
If you have applications which run infrequently (e.g. every four months) and use Search with Application Permissions, plan for time to allow the on-demand index to rebuild.
Please click Additional Information to learn more.
Search content with application permissions – Microsoft Graph | Microsoft Learn
Source: Microsoft
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The upcoming update regarding the On-demand Index Life Cycle Change for SharePoint and OneDrive Search, set to take effect on November 1, 2024, will have an impact on both admins and users in various ways.
For admins, this change means they need to be aware that on-demand indexes that have not been queried in 100 days will be decommissioned. This may require them to plan accordingly, especially for applications that run infrequently and rely on Search with Application Permissions. It’s essential for admins to understand the latency implications of using Application Permissions for searching and to allow time for the on-demand index to rebuild if needed.
As for users, the change should not directly affect their day-to-day search experience, as it primarily pertains to the backend processes related to indexing and search functionality. Users can continue to search for shared and public content as usual, with the potential for a brief delay in accessing private content while the new index is being built.
In terms of criticality, this update is important for maintaining the efficiency and effectiveness of search functionalities within SharePoint and OneDrive. While it may require some adjustments and awareness from admins, the overall impact on users is expected to be minimal once the transition is complete.
Remember, if you have applications that fall into the infrequent usage category, make sure to factor in the time needed for the on-demand index to rebuild. For more detailed information, you can check out the provided link for Additional Information. Stay informed and prepared for a smoother transition!