Hi @Jonah Albertijn ,
Thanks for reaching out.
If you are using Microsoft Defender for Endpoint P1, then it will only allow you to create Device Group, but not allow to choose any automation Level.
As mentioned https://learn.microsoft.com/en-us/microsoft-365/security/defender-endpoint/configure-automated-investigations-remediation?view=o365-worldwide to configure different remediation levels you would require Microsoft Defender for Endpoint Plan 2.
Hope this will help.
Thanks,
Shweta
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