Bug? When using a $filter on employeeType to retrieve users, it doesn't work unless $count is also specified

Question

When using MSGraph to retrieve users via a $filter on employeeType, unless also specifying $count it gives an error. With the $Count it works perfectly.
I have tried through PowerShell code (I have a PowerShell class to communicate with the MS Graph API), and Graph explorer.
Anyone else seen this, it looks like a bug?

Answer 1

This looks looks like a known issue as it seems the $filter=employeeType eq 'val' only works with both ConsistencyLevel header set to eventual and $count=true. See this thread. There is also this GitHub issue which states that.

Answer 2

Example:
https://graph.microsoft.com/v1.0/users?$filter=employeeType eq 'V' - fails with Request_UnsupportedQuery
https://graph.microsoft.com/v1.0/users?$filter=employeeType eq 'V'&$count=true - works

Answer 3

Great, it is recognised as an issue, but looks like it has been closed as resolved but is far from it :(
I could get it to work in GraphExplorer with the $count=true, but not in my code, then I see in the issue about the consistencylevel header which I need to add to my code.
At least I have a workaround, thanks, but I wish they would fix the bug.

Answer 4

OK, strange that it was designed to work this way, especially if you don't need the count, just the data.
I think the documentation needs to be clearer to indicate that you might be able to filter on employeeType but you need to specify $count and consistencyLevel.