When working with SharePoint lists, there might be times when you need to restore items to a previous version. Whether it’s due to an error, unwanted changes, or simply needing to revert to an earlier state, SharePoint’s versioning feature is a lifesaver. I used the script to undo bulk changes made by a Power Automate flow after the process failed halfway due to some data needing correction. For data integrity, the bulk update needed to be undone before running the Power Automate flow again after the data corrections were made.

Introduction When working with files in SharePoint, the drive ID and drive item ID are essential parameters for further manipulation using Microsoft Graph API. The drive ID is a base64 encoded string composed of the site ID, web ID, and list ID for a particular SharePoint library. For more details, refer to Microsoft Graph: Encoding and decoding the drive ID by Mikael Svenson. The item ID part appears to be a base32 encoding of the SharePoint item’s unique ID, though the exact mechanics are still being explored.

Introduction By default, guest access for Microsoft 365 groups is enabled within the tenant. This can be controlled either to allow or block guest access at the tenant level or for individual Microsoft 365 groups / Teams. For more information, check out Manage guest access in Microsoft 365 groups. PowerShell Script to Prevent Guest Access Below is a PowerShell script that allows you to disable/enable guest access for specific Microsoft 365 groups.