From Bright Pattern Documentation
Log
This block adds a message to the Scenario Engine log file. This block is intended for debugging and testing purposes only and may be removed in production versions of scenarios.
Settings
Title text - The name of the block instance.
Text message - The free-form content of the message. You can use scenario variables in the text. For example: This is a test log message for call from $(item.from) to $(item.to).
Log Level - Specifies the Scenario Engine log level where this message will appear.