To exclude gala attendees from the report that identifies individual donors who have yet to make a gift toward the Annual Fund Campaign this year, a cross filter should be added to the report. Cross filters allow you to filter records based on related objects, such as excluding contacts who are campaign members of the gala event.

Steps:

Go to Reports and create a new report or edit an existing report on donors.

Add a cross filter to the report by clicking on the "Filters" pane and selecting "Add Cross Filter."

Set the cross filter to exclude Contacts who are Campaign Members of the specific gala campaign.

Save and run the report to ensure it correctly excludes gala attendees.