How to Debug Manage Package in Salesforce

Many times as a developer we need to debug the manage package for possible run time error. For example , while uploading contacts using Import wizard we get “Internal Server Error” and when we try to look into debug log there is no clear indications. However in my experience i have seen this kind of error may be because of manage package installed from AppExchange. As per “Intellectual property” rights , Salesforce cannot show the debug logs to everyone, However there is one way to achieve by System admins to some extent.

For purpose of this article, i am using one manage package from AppExchange to show how it works.

Before performing any operation on installed package, just open the “Developer Console“. Once you are done, check the logs. You will see something like below screen shot and you will be able to debug at least till some level.