In this Azure PowerShell article, we will discuss how to fix the error “Get-AzureADUser: Error occurred while executing GetUsers Code: Authentication_Unauthorized” that I got while executing the Get-AzureADUser PowerShell command.
Table of Contents
Recently, I was working on a requirement where I was trying to execute the Get-AzureADUser PowerShell command, but the moment I executed this command, I got this error.
I was executing the below PowerShell command.
Connect-AzureAD
Get-AzureADUser
Below is the complete error message that I got after executing the above PowerShell command.
Get-AzureADUser : Error occurred while executing GetUsers
Code: Authentication_Unauthorized
Message: User was not found.
RequestId: 8b8626b5-07ba-468a-ba40-5f468ef265f5
DateTimeStamp: Mon, 29 May 2023 11:52:47 GMT
HttpStatusCode: Forbidden
HttpStatusDescription: Forbidden
HttpResponseStatus: Completed
At line:2 char:1
+ Get-AzureADUser
+ ~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Get-AzureADUser], ApiException
+ FullyQualifiedErrorId : Microsoft.Open.AzureAD16.Client.ApiException,Microsoft.
Open.AzureAD16.PowerShell.GetUser
You can see the same error below

To solve this error, we need to run the Connect-AzureAD command with the tenant IDÂ specified but I was running only the Connect-AzureAD PowerShell command.
So I have executed the below PowerShell command
Connect-AzureAD -TenantId 5d9d690a-0310-474d-ae8b-42df2d549228
Get-AzureADUser
After executing the above command, this time I got the expected output without any issues. You can see the below screenshot for your reference.

You can also check out the Get-AzureADUser to retrieve the Azure AD user details with multiple examples.
Conclusion
Well, In this Azure PowerShell article, we discussed how to fix the error “Get-AzureADUser: Error occurred while executing GetUsers Code: Authentication_Unauthorized” that I got while executing the Get-AzureADUser PowerShell command. Hope this information will help you.