How to modify exported data?
While you're in the "Exports" tab, choose one of the created exports and go to the "Rules" section.
Here you can create any rules that will modify the data in the selected export.
The "Rules" section is divided into two simple blocks: in the first one (3) you can specify the frequency of data modification; in the second one (4) you can select which piece of data is to be modified and how.
In the attached sample a rule has been created for each product to be accompanied with the word "BESTSELLER". Once you’re done, save the rule created and move on to the next section