Charles Kuhlmann commented on Aug 1, 2013

Re: Sametime issue in Notes 8.5.3 - Number of contacts exceeded 501

I had the same problem with Notes 8.5.3. I found a Sametime section under Lotus Notes Preferences (File - Preferences). When I expanded the section I found a header for Contact List. Open up that option and you'll see where you can uncheck boxes for 'Warn me when the number of contacts that can be monitored is exceeded' and 'Warn me when my contact list is approaching the maximum number allowed'. That fixed it.