A bit of a follow-up from Adobe Support:"Basically, the logic here is that Adobe acts as a data container and processor, while you are the data controller. You send us the data, being the controller and set the rules for data processing, and Adobe collects and processes the data based on these rules...

Here's a puzzle. I have a product order containing two products that occurred in late November just now showing up in reporting over 6 months later. An eagle-eyed director caught that two products that changed skus last February showed up in reporting today. Coincidence that an order with "old" skus...