Verify That Migration Was Successful
Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.
After you have completed the migration of the global settings, we recommend that you test it by performing some instant messaging and conferencing to verify that the new global settings tree is working properly.
Important
Do not use Active Directory Users and Computers or the Office Communications Server 2007 administrative tools to move or modify users until the final step in the migration process is complete.