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The server-side API debug log method available for scoped applications is gs.info(). This method logs informational messages that describe the progress of the application. Older methods such as gs.print() and gs.log() are not available in scoped applications. The gs.debuglog() method does not exist. The gs.info(), gs.warn(), gs.error(), and gs.debug() methods work in both scoped applications and global, and are therefore more versatile going forward in future versions. Reference: Debugging best practices

User-defined non-inherited fields can be deleted from a table in ServiceNow. These are fields that are created by users on a specific table and are not inherited from a parent table. Inherited fields cannot be deleted from a table, as they are defined on a parent table and shared by all child tables. Any field on a table cannot be deleted, as some fields are system-defined and essential for the table functionality. Table records are not deleted when a field is deleted, as the field deletion only affects the table structure and not the data. Reference: Delete fields

Comprehensive and Detailed Step-by-Step Explanation:

Understanding Scoped Applications:Scoped applications in ServiceNow are designed to isolate and protect application-specific code and data. Server-side scripts within scoped applications can use the gs (GlideSystem) object for logging and debugging purposes. However, not all gs methods are appropriate or valid for scoped applications.

Valid Logging Methods in Scoped Applications:

gs.info():This method logs informational messages to the system log. It is commonly used for general-purpose logging when developers need to track execution flow or display debug data. Example:

gs.info('This is an informational log message.');

gs.error():This method logs error messages to the system log. It is used to indicate problems or issues encountered during script execution. Example:

gs.error('An error occurred during script execution.');

Incorrect Options Explained:

gs.debug() (Option B): This method is not valid in scoped applications. It is a legacy logging method available in the global scope but restricted in scoped applications.

gs.iog() (Option C): This is a typographical error and not a valid gs method in ServiceNow.

gs.logError() (Option E): This is not a recognized ServiceNow API method. To log errors, gs.error() is used instead.

Best Practices for Logging:

Logging should be meaningful and avoid unnecessary entries to keep logs clean and manageable.

Avoid excessive use of logging in production environments, as it can clutter the system logs and potentially degrade performance.

References:

ServiceNow Developer Documentation on GlideSystem (gs)​.

SN Pro Tips on debugging and logging practices in scoped applications​.