This is the main calendar in the Schedule screen from which you can view information.
The Schedule screen can display two different items for schedulable users - Schedule Markers as well as Workorder Items
You can place your mouse over the item on the Schedule calendar to pop up a tip window providing more information.
You can edit what displays and does not display in this popup window by editing the settings in the Administration Global Settings.
Schedulable users are displayed by default in alphabetical order by their Last Name. The special unassigned column is always the first column. The back color for each schedulable user is set in that user's User entry screen "Schedule Back Color" field
See also:
Main Workorder entry screen menu options - Follow Up
Global Settings - Workorder Item Summary Template
Workorder Item Summary Template tags
Service Workorder - Scheduled Users
How do I edit what pops up on Schedule screen for workorder item?