How to debug the groovy script in SFP

Summary:

I have the below groovy code :

if (previousPell.isEligible())

      {

        log.debug("PREVIOUS PELL IS ELIGIBLE");

  

I want to know where can i see these log messages? Is there any log file generated in some path or we can see these log/debug messages in UI?

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Code Snippet (add any code snippets that support your topic, if applicable):

        log.debug("PREVIOUS PELL IS ELIGIBLE");