Why can't I create a managed device on Intune? - api

Question

I am trying to create a managed device in Intune but I am getting different errors.
This is the documentation I am using https://developer.microsoft.com/en-us/graph/docs/api-reference/v1.0/api/intune_devices_manageddevice_create.
I am testing the functionality using Graph Explorer so I do not need the authorization token and the account I am logged into is the global administrator and has the appropriate delegated permission enabled 'DeviceManagementManagedDevices.ReadWrite.All'.
When I try the first request /users/{usersId}/managedDevices I get a 403
An error has occurred - Operation ID (for customer support): 00000000-0000-0000-0000-000000000000.
If I try /deviceManagement/managedDevices I get 400
No OData route exists that match template
I am signed up for a free trail for Intune and Azure AD if this makes any difference.
What could I be missing?
The request body I based off the example in the documentation for create managedDevice. I also tried removing the odata type but it makes no difference.
An example I have tried
{
"id": "5h5b3fab-0169-45de-9aad-3d928ebbe1a0",
"userId": null,
"deviceName": "newIntuneDev",
"deviceActionResults": [],
"enrolledDateTime": "2018-02-19T11:04:24.242385Z",
"lastSyncDateTime": "2018-01-03T14:01:45.1553437Z",
"operatingSystem": "Android",
"complianceState": "compliant",
"jailBroken": "false",
"managementAgent": "mdm",
"osVersion": "7.0",
"easActivated": true,
"easDeviceId": "DFC17B28459230B3",
"easActivationDateTime": "2018-01-19T11:05:11.4483412Z",
"azureADRegistered": true,
"deviceEnrollmentType": "userEnrollment",
"activationLockBypassCode": null,
"emailAddress": null,
"azureADDeviceId": "89f65205-72af-4830-a9b1-ebcd3160476f",
"deviceRegistrationState": "registered",
"deviceCategoryDisplayName": null,
"isSupervised": false,
"exchangeLastSuccessfulSyncDateTime": "0001-01-01T00:00:00Z",
"exchangeAccessState": "none",
"exchangeAccessStateReason": "none",
"remoteAssistanceSessionUrl": "",
"remoteAssistanceSessionErrorDetails": "",
"isEncrypted": false,
"userPrincipalName": null,
"model": "SM-G930F",
"manufacturer": "samsung",
"imei": "539467078998547",
"complianceGracePeriodExpirationDateTime": "9999-12-31T23:59:59.9999999Z",
"serialNumber": "T58H52RP9KN",
"phoneNumber": null,
"androidSecurityPatchLevel": "2018-01-01",
"userDisplayName": null,
"configurationManagerClientEnabledFeatures": {
"inventory": false,
"modernApps": false,
"resourceAccess": false,
"deviceConfiguration": false,
"compliancePolicy": false,
"windowsUpdateForBusiness": false
},
"wiFiMacAddress": "4C6641183631",
"deviceHealthAttestationState": null,
"subscriberCarrier": "",
"meid": "659467078998547",
"totalStorageSpaceInBytes": 0,
"freeStorageSpaceInBytes": 0,
"managedDeviceName": "newDevice",
"partnerReportedThreatState": "unknown"
}

Answer 1

This (https://developer.microsoft.com/en-us/graph/docs/api-reference/v1.0/api/intune_devices_manageddevice_create) is a documentation error. API does not support creation of managedDevice. You would need to MDM enroll a device into Intune to see data populated under ~/managedDevices API.
Signup for a free Intune trial subscription
Set MDM authority - https://learn.microsoft.com/en-us/intune/mdm-authority-set
Enroll a device -
https://www.microsoft.com/itshowcase/Article/Video/634/Enroll-your-mobile-device-in-Microsoft-Intune-for-corporate-access
Once successfully enrolled, device should show up under ~/managedDevices
Thanks,
Alemeshet Alemu - MSFT