Extract Azure Tenant Name from ID with MS Graph

Mission Objective

Secure tenant name from an ID during sign-in analysis. Neutralize inefficient methods. Deploy Microsoft Graph for rapid execution.

Gear Check

• Enterprise App: Equip CrossTenantInformation.ReadBasic.All permission.

• No App: Connect to Graph with global admin access. Your call.

The Play

Built a PowerShell function—GetTenantName. Deploy it to your profile for instant recall:

function GetTenantName {
    param (
        [string]$TenantId
    )

    # Connect to Graph prior—standard protocol
    $url = "https://graph.microsoft.com/v1.0/tenantRelationships/microsoft.graph.findTenantInformationByTenantId(tenantId='$TenantId')"
    $data = Invoke-MgGraphRequest -Uri $url

    $intel = [pscustomobject]@{
        Id     = $data.tenantId
        Name   = $data.displayName
        Domain = $data.defaultDomainName
    }

    Write-Host "ID: $($intel.Id)" -ForegroundColor Cyan
    Write-Host "Name: $($intel.Name)" -ForegroundColor Cyan
    Write-Host "Domain: $($intel.Domain)" -ForegroundColor Cyan

    # Disconnect for a clean exit
    Disconnect-MgGraph -ErrorAction SilentlyContinue
}

Execution

Link up with Graph, then hit:

GetTenantName -TenantId "your-tenant-id-here"

Output: ID, name, domain. Cyan for visibility. No clutter.

Mission Value

Azure AD ops, sign-in diagnostics—this cuts response time. Graph delivers intel straight from the source. No detours, no delays.

Field Notes

Got a tighter approach? Report in. Mainframe’s always optimizing.