Problem Statement When using the KQL query ContentClass:STS_List_DocumentLibrary without additional filters, some document libraries (like “Shared Documents”) are not appearing in search results, even though they exist and contain content. Initial Troubleshooting Steps Taken 1. Hidden Site-Level Visibility Setting Action: Visited https://<your-site>/_layouts/srchvis.aspx and enabled “Always index all Web Parts on this site” Status: ✅ Enabled - Monitoring for 24-48 hours to see if this resolves the issue Result: No effect on bringing the shared documents search result

Introduction SharePoint search is powerful, but searching by date ranges can be surprisingly tricky. Many users struggle with date-based queries, especially when trying to find documents modified or created within specific timeframes. This guide provides tips to use SharePoint/M365 search capabilities with date fields: write, LastModifiedTime, Created. The Challenge with Date Searches Date searches in SharePoint have several gotchas that can frustrate users: Format requirements - SharePoint expects specific date formats (American format UTC , i.