Changing primary user of a device in Intune using Microsoft Graph Powershell

Hello All,

I ran into issues where our Technicians who reimage and deploy laptop/workstations to our users gets assigned as Primary user on the device. Right now, We have about less than 1000 devices that doesn't have the proper Primary user in Intune. We are currently fixing this via manual effort by doing several click but I wanted to automate our process to be more efficient. So installed Microsoft Graph Powershell and ran the script below but I am getting an error message.

I am not sure what I am doing wrong as the script provided on Microsoft website doesn't have any examples or syntax.

Script:

Connect-mgGraph

Update-MgDeviceManagementManagedDevice -manageddeviceid $deviceid -Users $userid

The value I have for the $deviceid is the Intune deviceid of the device while the value on the $userId is a UPN. I also tried using objectid of the user but I keep getting below error message.

Update-MgDeviceManagementManagedDevice : Cannot process argument transformation on parameter 'Users'. Cannot convert

value "[Microsoft.Graph.PowerShell.Models.IMicrosoftGraphUser]Microsoft.Graph.PowerShell.Models.MicrosoftGraphUser" to

type "Microsoft.Graph.PowerShell.Models.IMicrosoftGraphUser[]". Error: "Cannot convert the

"[Microsoft.Graph.PowerShell.Models.IMicrosoftGraphUser]Microsoft.Graph.PowerShell.Models.MicrosoftGraphUser" value of

type "System.String" to type "Microsoft.Graph.PowerShell.Models.IMicrosoftGraphUser"."

At line:1 char:101

• ... 0895 -Users [Microsoft.Graph.PowerShell.Models.IMicrosoftGraphUser]$u ...

+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo          : InvalidData: (:) [Update-MgDeviceManagementManagedDevice], ParameterBindingArgumentTrans

   formationException

    + FullyQualifiedErrorId : ParameterArgumentTransformationError,Update-MgDeviceManagementManagedDevice

I've been trying to find some references I can find about "Microsoft.Graph.PowerShell.Models.IMicrosoftGraphUser[] but I can't find anything. I am also not sure why it is trying to convert a string to "Microsoft.Graph.PowerShell.Models.IMicrosoftGraphUser[].

Any advise or help is much appreciated!

Thank You