Which step is necessary for custom debug statements to appear in the StoreFront Toolkit Request Log?

To ensure that custom debug statements appear in the StoreFront Toolkit Request Log, it is essential to adjust the logging levels in the Custom Log Setting. By checking the DEBUG box for the log levels written to files, you enable the system to capture and log debug-level messages. This means that any debug statements you include in your custom scripts will be recorded in the request log, allowing developers to diagnose issues effectively and monitor the behavior of their code during execution.

The specific action of enabling DEBUG at this level is critical because it directly controls whether debug information is outputted in the logs. Without this setting adjusted, even if other configurations are in place, the debug statements would not be captured, limiting visibility into the execution flow and any issues that may arise.

Other options may involve settings related to general logging or site-wide preferences, but they do not specifically address the necessary step to capture debug-level statements in the request log. Adjusting log levels correctly is a precise and essential action for developers looking to utilize logging effectively in their troubleshooting and development processes within Salesforce Commerce Cloud.