To find donors who have given only one gift, create a constituent query using the total number of gifts filter. This filter is one of the summary fields.

To access the Total Gifts summary field in version 6, click Gift in the Available Fields treeview, scroll to the bottom, and click Summary Information.

To access the Total Number of Gifts summary field in version 7, scroll to the bottom of the Available Fields treeview, click Summary Information, and click Summary For Gift.

Add a gift date range to further define the query.