B2C Commerce logging uses ahierarchical category model. When WARN is enabled onproduct, WARN and all higher-severity levels are available forproductand descendant categories. A more specific configuration onproduct.importcan then lower that subcategory ' s threshold to DEBUG.

Salesforce gives essentially this exact example in its server-side JavaScript documentation: when WARN is enabled forproductand DEBUG is configured forproduct.import, WARN and ERROR are logged for the parent and its subcategories, whileproduct.importadditionally logs DEBUG and INFO.

The reason is that the configured level is aminimum severity threshold. DEBUG is lower than INFO, WARN, ERROR, and FATAL, so selecting DEBUG permits the entire severity range for that category. The more specific child-category setting overrides the inherited parent threshold for that branch.

This hierarchical design lets administrators keep broad logging conservative while temporarily increasing diagnostic detail for one subsystem such as product import processing.

Study Guide reference:Application Development — custom logging hierarchy, parent/child categories, log-level inheritance, DEBUG, INFO, WARN, and granular diagnostics.

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