By default the published free/busy schedule is 2 months. And that means this month and next month, so if it is the 4th week of this month you will only be able to see schedules to the end of next month (5 weeks total). I know, kinda convoluted IMO, but that’s what it is. Users have to go change their default published free/busy for you to see more for them. In outlook go to tools, options, and on the preferences tab select the calendar options button. At the bottom of that screen select free/busy options and change the default to 12 months or whatever you would prefer. Every user has to make this change; anyone who does not change it will remain at the 2 months default when you look them up. To make a global change for an entire organization, it would depend on what method of controls you have on your company applications and desktop configurations. I think we changed our corporate default using scriptlogic.