SharePoint

SharePoint Guest Access Denied After UPN Domain Change: Troubleshooting and Fix

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Introduction A common Microsoft 365 issue occurs when users are migrated from one UPN/email domain to another while existing SharePoint external-sharing policies still reference the old domain. For example: The user may be able to authenticate successfully, exist as a SharePoint guest, and have permissions on the site, but SharePoint can still display: This article … Read more

How to give Site Collection Or Admin Permission on all Sites in SPO in one go

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Managing SharePoint Online permissions efficiently is crucial for administrators, especially when handling multiple site collections. This blog post will guide you through using PowerShell to connect to SharePoint Online, retrieve all site collections, and assign a user as a Site Collection Administrator across all sites. Prerequisites Before running the script, ensure you have the following: … Read more