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Helper I
Helper I

Problem with HTTP GET to graph api


I have a problem with a HTTP GET to graph api.
I have this URL :$count=true&$select=id,displayName,approximateLastSignInDateTime&$filter=approximateLastSignInDateTime eq null

But whatever I try (using "+" instead of the whitespaces, adding the url into a variable, etc...) it just keeps giving the error:

Unsupported or invalid query filter clause specified for property 'approximateLastSignInDateTime' of resource 'Device'.",

The URL works fine in the graph explorer.
Someone ? 


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