Our company relies a great deal on shared calendaring because our staff is on the road often. We need a way perform delegate tasks in OWA without having to provide full mailbox access?

Delegate access to shared calendars is assigned using the desktop version of Microsoft Outlook. To assign delegate access, select Tool\Option from the top menu in Outlook and move to the Delegate tab. You can choose to send a summary message to delegates informing them of the permissions they have been assigned.

Assigning delegate permissions is not a feature in OWA since you can't open shared calendars as you can in Outlook, unless you have a third-party add-on like the one from Messageware (www.messageware.com). Messageware CalendarShare lets users assign delegate and folder access using their OWA Delegate Management console and opens up to 5 personal and shared calendars side-by-side like in Outlook.