Welcome to the #dominoforever Product Ideas Forum! The place where you can submit product ideas and enhancement request. We encourage you to participate by voting on, commenting on, and creating new ideas. All new ideas will be evaluated by HCL Product Management & Engineering teams, and the next steps will be communicated. While not all submitted ideas will be executed upon, community feedback will play a key role in influencing which ideas are and when they will be implemented.
For updating contact lists with user renames, the current process is to run the Sametime Database utility.
https://help.hcl-software.com/sametime/v1204/admin/t_dbutility_update.html
We are evaluating to specifically make renaming a user easier. The enhancement below is what I would suggest be voted on.
Switch to using UUID in mongo instead of DNs and email addresses
https://domino.ideas.hcl-software.com/ideas/STC-I-620
This will bind the contact lists to a value that does not change in the directory and would adopt display name changes automatically.