Custom settings: Engaging Networks Log Settings
From EN Salesforce Integration
Found under Setup > Develop > Custom Settings > Engaging Networks Log Settings
Enable additional logging
1. Edit the default logging options
2. Set specific logging, based on Profile
Note that it is not a requirement to have both #1 and #2 set. In the example below, this would enable all logging, for all profiles; that interact with the package.
Once enabled and after each mapping that is processed, find the results under Engaging Networks Logs.