When I run a comparison between two different collections, I notice that 3T tool uses ObjectID as a primary key to compare JSON data. ObjectID is a unique ID generated and controlled by MongoDB and it will always differ for collections, so I am unable to extract results as desired. Is there a way I can specify to compare based on a User defined ID field which is unique for documents( We have ProductID which is unique for each doc)

Ability to compare two different collections by specifying User defined Unique ID field rather than depending on Object ID from mongoDB.