Splatting and Formatting Operator Work Elsewhere
Think I'm getting closer, as far as the error goes. As I mentioned earlier, the -Identity parameter requires DistinguishedName property and I was giving it the SamAccountName property.
Below, is the code I changed. I no longer see the error, so that's good.
# Move user to the correct OU. $LoginNameDN = (Get-ADUser -Identity $LoginName).DistinguishedName $MoveADObjectParams = @{ Identity = "$LoginNameDN" TargetPath = 'OU={0},OU=Students,OU={1},OU=accounts,DC=academic,DC=exeter,DC=k12,DC=pa,DC=us' -f @( $User.'Grad Year', $SchoolCodes[$User.School].Name) } # End MoveADObjectParams Move-ADObject @MoveADObjectParams -Verbose -ErrorAction Stop }