Loop through all Office 365 delegated admin tenants

Manage Office 365 Delegated Admin Tenants.ps1

#
# Managed Office 365 Delegated Admin Tenants.ps1
#

# Basic connection stuff
$cred = Get-Credential
Import-Module MsOnline
Connect-MsolService -Credential $cred

# Get list of tenants & loop
Get-MsolPartnerContract -All | ForEach {

    # Get all users in an office 365 tenant
    Write-Host ("Office 365 users for " + $_.Name)

    # Replace this with any Office 365 cmdlet you want to run
    # Make sure you keep the -TenantId parameter
    Get-MsolUser -TenantId $_.TenantId.Guid

}