Things to check before running Disable-CsAddomain for Lync 2013.
Environment I'm working in has completely moved to teams, but did have a Lync 2013 environment many years ago. Teams is configured in "islands" mode... and Lync 2013 has had all servers and the configuration store removed, however, the AD groups and ACL's in AD (and the RTC service container) still exist.... and i would like to round out the removal by running Disable-CsAddomain I have read a few of articles such as: https://video2.skills-academy.com/en-us/skypeforbusiness/hybrid/decommission-remove-on-prem https://www.commsverse.com/do-not-remove-skype-for-business-until-you-have-read-this/ and am confident there are no RTC attributes on on-premise users... Given that this is very much a "one way change" - i am just concerned - and want to make sure i have checked everything. So - can anyone here share their experience with this ?