Public folder shared calendar not updating
Now that you have the calendar ready, follow these steps to set up shared permissions in Office 365 for users who are not part of your organization.
This will bring up a context menu with options for the calendar you selected.
If you are comfortable with sharing more information, “Full Details” will show everything.
With the settings changes you’ve made so far, it’s possible for people without an Office 365 account to view your calendar.
This works by making some group calenders plus making all calenders "shared".
I do have a problem, though, and that is the time it takes for a refresh.
If it's with seeing the calendars directly, disabling cached mode on all involved clients should eliminate consistency latency (at the expense of overall system performance and latency on opening a calendar).
If it's viewing availability, upgrading to Exchange 2007 will allow Outlook 2007 clients to use the availability service (real time) rather than the client-published free/busy data in the hidden public folder.
This guide will show you how to create a new shared calendar in Office 365, and then share it with someone outside your organization. They have a lot of meetings and their schedule is very important to them. The server is Windows Server 2003 running Exchange 2003.