1. Navigate to Lists > Saved Searches > New and select Transaction as the type.
2. Under the Criteria tab and Standard subtab > add a filter called Promotion and in the pop up window, select the type of promotion(s) that you want to see > Click Set
3. Under the Results tab > add a row called Promotion and next to it under the Summary Type column, select Group > click Add
4. Under Results again > add another row called Internal ID and under the Summary Type column, select Count > click Add
5. Click Save.