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Decommissioning Skype for Business 2015 Server

After attempting to decommission an old Skype for Business 2015 Enterprise Cluster we ran into an issue which was stopping us from decommissioning the cluster itself. The error being presented was “Can’t publish topology because users still homed to pool that would be deleted”. We thought that we had moved all of our contacts and users across to the new but after further investigation we found the following Powershell script which helped us along the way to get rid of the orphaned objects:

https://gallery.technet.microsoft.com/office/LyncS4B-Orphaned-Objects-03beadd7

Unfortunately, we ran into a problem where this script ended up presenting all of our response groups as being homed on our older cluster. We have identified the culprit piece of code and updated it to match against the pool FQDN you enter in the script. The script can be found below: