Do you have multiple Azure Application Insights instances that you’d like to query at once? Perhaps you’re trying to see all errors across multiple environments, each with their own App Insights instance?
When using the Azure Portal, querying multiple instances is straightforward.
How to query across multiple App Insight instances
First, login to the Azure portal using your Microsoft work, school or personal account credentials.
Navigate to one of the App Insight instances you’d like to run a query against.
Then, in the sidebar scroll down until you see ‘Logs’. Click on this menu item.
You should now see the Application Insights query screen. From here, click ‘Select scope’.
A new modal will appear, allowing you to select multiple Application Insights instances to run your query against from through out your subscription and across multiple resource groups.
Once you’ve clicked the checkbox next to your selected Application Insights instances, click ‘Apply’ to close the modal and persist your selection.
Now type your query, and click ‘Run’. It will execute the request against all your selected scopes (in this case your Application Insights instances) and return the results.