Using the <Start-ADSyncSyncCycle -PolicyType Delta> command remotely.

Hello all,

I have an Exchange Hybrid between Office 365 and Exchange 2013 on-prem. For this to work we have the Azure AD Connect application installed on the Exchange server. It syncs every half hour and in order to force a sync, as needed in certain situations, we login to the server remotely and run the command <Start-ADSyncSyncCycle -PolicyType Delta> to force a sync. Works everytime and this makes sure that the Active Directory users attributes related to mailbox parameters are copied between the cloud and on-prem. I have tried initiating a remote Exchange Powershell session from other Exchange servers using <Import-PSSession> and <Enter-PSSession> after creating a New-PSSession. This all works but I get an error when I run the command <Start-ADSyncSyncCycle -PolicyType Delta> in both Import and Enter PSSession options. 

Any Ideas on what I am doing wrong would be greatly appreciated. I am new to the ocean of Powershell so I am pretty sure it is user error on my part.

Thanks