[Kevin Zollinger]

I don’t have time to share a screen shot of working code, but this sounds like a great place to use an Odata filter on a SharePoint Get Items action. You would want to test your Due Date against utcNow() + 3 days and only select that record if the Due Date is less than that. That means you are only processing those records you need to touch and also that every record that makes it through the filter needs to be touched.

Good luck!