Querying data from multiple Application Insights instances

This article provides a technical guide for querying data from multiple Application Insights instances in Azure. It explains how to identify Log Analytics Workspace IDs, perform cross-resource queries using KQL, and unify telemetry from distributed applications across different regions and subscriptions. The guide covers prerequisites like workspace-based resource mode and various query methods including resource name, qualified name, workspace ID, and Azure Resource ID. Aimed at IT professionals and developers, it helps troubleshoot performance issues in micro-service architectures by aggregating logs into a single view.