This document will walk you through creating a rule to format the color of calendar appointments in Outlook based on the criteria if someone is a Required or Optional Attendee.

Important Notes: 

• This will affect all calendars that you view in Outlook
• This will affect all previous and future appointments
• Any categorization you apply will overwrite the color on this rule

Steps:

Open Outlook

Click the Calendar

Click the View Tab

Click Conditional Formatting

Click Add

Enter a name and select a color

Click Condition

Click Advanced

Click Field

Select All Appointment Fields > Optional Attendees

Set criteria to the following:

• Field: Optional Attendees
• Condition: Contains
• Value: [Your Name (first last)]

Click Add to List

Click OK > OK > OK