Combined Select and Filter MS-Graph query parameters not working as expected for signInActivity/lastSignInDateTime

Question

Query: https://graph.microsoft.com/beta/users?$select=id,displayName,signInActivity&$filter=signInActivity/lastSignInDateTime le 2020-03-01T00:00:00Z

Answer 1

We have a bug for collection enumeration in that beta endpoint. Due to be fixed within next couple of months. AS a workaround you can export your dataset into data structure and filter in memory (preferred) or you can query specific users (expensive and not recommended)