Similar to the workflow log, the session log also indicates the detailed level of information that provides you with a complete understanding of the process that occurred while the workflow was running. Session logs in Informatica give you the exact reason for the error that has occurred, using which you can debug the issue and correct the code. For example, in the following screenshot, the session log indicates the error as The system cannot find the file specified. This directly indicates that the file you wish to access does not exist. Check the details in the session task, correct the path, and your workflow will succeed.