To find out what object or integration a field is pulling from, you can:
- Create a new empty report
- Add 3 breakdowns: Action Name, Integration, and the field you are analyzing (Both action name and integration are under Action Properties)
- Click on the field you are analyzing in the breakdowns, click Filter, and filter to "is not empty”
- Click on the field you are analyzing in the breakdowns, click Customize, and map all rows that are "not empty” to a text like "Is not empty”
- Make sure your columns have Any Action - Times Done
- Make sure your date range is "All Times”
- Click “Preview”
The end result looks like below:
In this case it looks like the field is being pulled from Lead, Contact, and CampaignMember objects.