Cannot use custom content type as a result source filter in SP2013 O/P

Question

We have a client with a requirement for a search scope which will only return results of a specific CT - I figured I could do this with a new Result Source but the CT doesn't show in the Query Builder when selecting 'ContentType'

The CT is a site-scoped document set CT - I thought it may be because it's site scoped, not in the content type hub, so I created a new one in the CTB but found the same problem.

Any ideas?

Answer 1

What query are you using? I suspect that you are not using the correct query. I do this all the time and prefer the approach to using PATH. For example, ContentType=Contract will return all of the Contract content type documents.