Create a List of Customers with Only One Opportunity Transaction Created

To create a list of Customers with only one Opportunity transaction created in it's entire Transaction history:

1. Navigate to Lists > Searches > Saved Searches > New.

2. Select Search Type = Transaction.

3. Under the Criteria tab of the custom Saved Search:

• Type is Opportunity
• Main Line is True
• Name (please specify your customer)

4. Under the Results tab:

• Name > Set the Summary Type to Group
• Formula (Numeric) > Set Summary Type to Minimum > Formula = to_number{number}

5. Set  schedule of the search at Email tab if necessary.

6.  Click Save and Run.