@Shiv, Thansk for posting in Q&A. For the error MDM Declared Configuration: Function (checkNewInstanceData) operation (Read isNewInstanceData) failed with (The parameter is incorrect.) I suspect this is caused by a failed enrollment performed by ConfigMgr leads to an inconsistent or partially rolled back enrollment state on the client, leaving the device in a state where subsequent enrollment attempts cannot succeed.
From your description, it seems the windows has already enrolled. Please confirm if the error still occurs now. Go to device side Accounts->Access work or school, find the account, click info and sync to see if the device can sync with Intune successfully.
Meanwhile, you can also restart the device and see if the result will be different.
However, if the issue still persists, please collect the following information to clarify:
- How many devices are affected? Is any device working well? What is the difference between the working one and the not working one?
- Could you confirm if the devices are enrolled with co-management or Autopilot?
- For the configuration policy, if we check on the device, has the setting taken affected on the device? For the app, was it installed on the device?
If there's any update, feel free to let us know.
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