Issues creating Endpoint Security Policies using the Microsoft Graph

I swear it was all working and now BOOM, it doesn’t! Using PowerShell I had been creating Endpoint Security policies but now those same policies were still being created but WITHOUT the configuration settings I had configured.

You can try this for yourself if you wish, without needing to code. Firstly visit the Microsoft Graph Explorer and authenticate.

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Change the method to POST, set the API to beta and use the URL = https://graph.microsoft.com/beta/deviceManagement/templates/6cc38b89-6087-49c5-9fcf-a9b8c2eca81d/createInstance

Then in the Request body use the following:

https://gist.github.com/directorcia/6d8d2e5199c32b22b6fe782739447dc4

If you do you’ll find a new Endpoint Security Attack Surface Reduction – ASR rule has been created like so:

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If you look at settings for this policy you’ll see:

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all the settings are Not configured!

So, no errors during the POST but no settings! Strange.

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If however you return to the Request body and change the word value to settingDelta as shown above and then run the same query.

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Now, the Endpoint Security policy is created and the settings are configured.

So in summary, don’t use value any more it seems with the request body, use settingsDelta.

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