@Lars Notenboom, Thanks for posting in Q&A.
From your description, we understand that you want to find a way to extend the "In grace period" to keep your on holiday colleague’s device Compliant.
Based on my experience, it is recommended that you set Mark device noncompliant schedule under Actions for noncompliance settings. Here is one example you can refer, we set Action as Mark device noncompliant and Schedule as 5 which means after 5 days the device will be marked as noncompliant:
![A screenshot of a computer
Description automatically generated](/api/attachments/bb0fcb52-f8f6-4f40-bf85-ce8b88f1d1a1?platform=QnA)
Here is a link with more information about the Actions for noncompliance:
Configure compliance policies with actions for noncompliance in Microsoft Intune | Microsoft Learn
Hope above can be helpful!
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.