Issue:
When trying to Import-Module Adsync it is failing with below error

It not shown in the available modules as well, when we run Get-Module

Resolution:
Use the below command to get the AzureADSync Module imported manually from the AADConnect Installed Path Location
Import-Module –Name “C:\Program Files\Microsoft Azure AD Sync\Bin\ADSync” -Verbose

Now do validate the Cmdlets of Azure ADSync and you could see it gets resolved without any issues.
Hi,
This was useful when I had to upgrade from the old AD Sync versions on one server to a new server, I had numerous failing scripts to re-edit, this little tip saved me some time.
many thanks