Announcing Adaptive Policy Scopes for Microsoft 365 Records Management

Hey Chris Blackburn 

I'm happy to help with your questions. 

First, fileextension is already a queryable property, so you shouldn't' need to map it to a refinable managed property.  You can just use it directly in a KQL query:

fileextension:mp4

See: https://docs.microsoft.com/en-us/microsoft-365/compliance/keyword-queries-and-search-conditions?view=o365-worldwide#searchable-site-properties

Second, adaptive policy scopes determines the location a policy applies based on site properties - not the properties of the items within a site.  So you can use adaptive scopes to apply a policy to a site based on the URL (like the first half of the query in your image) since that is a site property - but not fileextension as it is an item property.

But the fileextension property can be used with auto-labeling.  So what you will probably want to do is create an adaptive scope that applies to the URL, then create an auto-labeling policy that applies to the adaptive scope and uses KQL to auto-label based on file extension. 

I hope this is helpful.  Thanks!