Sync On-Prem User "Full Sync: from PowerShell
Start-ADSyncSyncCycle -PolicyType Initial
https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnectsync-feature-scheduler
Check Features of AD Sync configured
https://docs.microsoft.com/en-us/azure/active-directory/connect/active-directory-aadconnectsyncservice-features
Turn Off AD Sync
https://support.office.com/en-us/article/turn-off-directory-synchronization-for-office-365-ee5f861e-bd48-4267-83d1-a4ead4b4a00d
$UserCredential = Get-Credential
Connect-MsolService -Credential $UserCredential
MFA Users
Install-Module MSOnline
Connect-MsolService
Set-MsolDirSyncEnabled -EnableDirSync $false
Connect with the Azure Active Directory PowerShell for Graph module
Install-Module -Name AzureAD
$UserCredential = Get-Credential
Connect-AzureAD -Credential $UserCredential
If MFA
Connect-AzureAD
Connect Other Online Service Product
https://docs.microsoft.com/en-us/office365/enterprise/powershell/connect-to-office-365-powershell
