Query Office 365 Tenant ID

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The Office 365 Tenant ID is pretty good hidden. Therefore here are two was finding out what's your Tenant ID ist.

Open PowerShell and login into Office 365

Set-ExecutionPolicy RemoteSigned

$credential = Get-Credential
Connect-MsolService -Credential $credential
$Tenantdomain = 'YourOFFICE365TenantName.onmicrosoft.com'
$TenantID = (Invoke-WebRequest https://login.windows.net/YourOFFICE365TenantName.onmicrosoft.com/.well-known/openid-configuration|ConvertFrom-Json).token_endpoint.Split(‘/’)[3]
$TenantID



Finding the Tenant ID in SharePoint



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