Unified Contact Store Rollback Procedure

At times, it might be necessary to roll back a user’s contacts from Exchange to Lync. For example, in a mixed environment if the user’s mailbox is moved from Exchange 2013 back to Exchange 2010, or if the user account is moved from a Lync 2013 pool back to Lync 2010, the user’s contacts will first need to be rolled back to Lync. This can be accommodated using the Invoke-CsUcsRollback cmdlet.

The Invoke-CsUcsRollback cmdlet can be executed against a single user by simply including the identity of the user in the command. However, at times it might be necessary to roll back a group of users, for example, an entire pool. This can be accomplished by using the Get-CsUser cmdlet to retrieve a specific list of users filtered by the required criteria, and then piping the output to the Invoke-CsUcsRollback command. For example, the following command could be used to roll back contacts for an entire pool of users:

Get-CsUser -Filter {RegistrarPool -eq "lyncse1.companyabc.com"} | Invoke-CsUcsRollback -Confirm:$False