In many cases you need to know the tenant ID of your Azure AD tenant. It’s easy to obtain this information using PowerShell or the Azure Portal.
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Get Azure Tenant ID With PowerShell
To retrieve your tenant id using PowerShell you simply need to connect to your Azure AD using the Connect-AzureAD commandlet. This commandlet is part of the AzureAD module, so if you don’t have this module installed already, you need to grab it from the PowerShell Gallery:
- Install-Module AzureAD
When the module is installed you can run the Connect-AzureAD command, which will prompt you for your username, password and any multifactor authentication you have set up:
The tenant ID is readily available in the output from this command:
If you want to dive more into the tenant information, use the Get-AzureADTenantDetail commandlet:
This command returns a JSON document and the easiest way to handle this output is by inserting it into a variable.
An example of this is shown in the below output:
Edit: As noted by Matthew Prentice, enterprise specialist with All Covered, to grab the tenant ID programmatically, use the objectId property of the output from the Get-AzureADTenantDetail command:
Get Azure Tenant ID With Azure Portal
To retrieve the tenant ID from the Azure Portal start by logging in.
Then search for and open the Azure AD Service:
In the Azure AD the tenant ID is visible in the tenant information box:
As seen in the above steps it’s very easy to pick up the tenant ID of your Azure AD. This is a useful parameter when dealing with multiple tenants, doing cross-tenant mail migrations and other advanced tasks.
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