Salesforce Log Categories and Events by Level

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Please see the 2018 version of this post - Salesforce Log Categories and Events by Level - Revisited

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The following table shows the Apex logging events that occur at each logging level by logging category. Logging events from higher levels also appear in all the lower levels.

The data is similar to that available through the Salesforce page that sets the debug log filters. That page shows the events dynamically based on the selected level in each category. Here I've currently gone for a static approach to make it more searchable.

The table is currently really wide and will probably be hard to read on lower resolution screens. I'll play around with it over time to see if the layout can be improved.

Logging Level / Category	System	Visualforce	Apex Profiling	Apex Code	Callout	Validation	Workflow	Database
ERROR				USER_DEBUG[LoggingLevel.Error] CODE_UNIT_STARTED, CODE_UNIT_FINISHED EXECUTION_STARTED, EXECUTION_FINISHED FATAL_ERROR PUSH_NOTIFICATION_INVALID_CERTIFICATE PUSH_NOTIFICATION_INVALID_APP PUSH_NOTIFICATION_INVALID_NOTIFICATION			WF_FLOW_ACTION_ERROR WF_FLOW_ACTION_ERROR_DETAIL FLOW_CREATE_INTERVIEW_ERROR FLOW_START_INTERVIEWS_ERROR FLOW_ELEMENT_ERROR
WARN				USER_DEBUG[LoggingLevel.Warn]			FLOW_ELEMENT_FAULT
INFO	POP_TRACE_FLAGS, PUSH_TRACE_FLAGS SYSTEM_MODE_ENTER, SYSTEM_MODE_EXIT DUPLICATE_DETECTION_BEGIN, DUPLICATE_DETECTION_END DUPLICATE_DETECTION_RULE_INVOCATION DUPLICATE_DETECTION_MATCH_INVOCATION_SUMMARY MATCH_ENGINE_BEGIN, MATCH_ENGINE_END MATCH_ENGINE_INVOCATION	VF_SERIALIZE_VIEWSTATE_BEGIN, VF_SERIALIZE_VIEWSTATE_END VF_DESERIALIZE_VIEWSTATE_BEGIN, VF_DESERIALIZE_VIEWSTATE_END VF_SERIALIZE_CONTINUATION_STATE_BEGIN, VF_SERIALIZE_CONTINUATION_STATE_END VF_DESERIALIZE_CONTINUATION_STATE_BEGIN, VF_DESERIALIZE_CONTINUATION_STATE_END	CUMULATIVE_LIMIT_USAGE, CUMULATIVE_LIMIT_USAGE_END TESTING_LIMITS	USER_DEBUG[LoggingLevel.Info] EMAIL_QUEUE ENTERING_MANAGED_PKG EXCEPTION_THROWN VF_APEX_CALL VF_PAGE_MESSAGE BULK_COUNTABLE_STATEMENT_EXECUTE HEAP_DUMP SCRIPT_EXECUTION PUSH_NOTIFICATION_NOT_ENABLED	CALLOUT_REQUEST, CALLOUT_RESPONSE	VALIDATION_ERROR VALIDATION_FAIL VALIDATION_FORMULA VALIDATION_PASS VALIDATION_RULE	SLA_END SLA_EVAL_MILESTONE SLA_NULL_START_DATE SLA_PROCESS_CASE WF_ACTION WF_ACTION_TASK WF_ACTIONS_END WF_APPROVAL WF_APPROVAL_REMOVE WF_APPROVAL_SUBMIT WF_ASSIGN WF_CRITERIA_BEGIN WF_CRITERIA_END WF_EMAIL_ALERT WF_EMAIL_SENT WF_ENQUEUE_ACTIONS WF_ESCALATION_ACTION WF_ESCALATION_RULE WF_EVAL_ENTRY_CRITERIA WF_FIELD_UPDATE WF_FORMULA WF_HARD_REJECT WF_NEXT_APPROVER WF_NO_PROCESS_FOUND WF_OUTBOUND_MSG WF_PROCESS_NODE WF_REASSIGN_RECORD WF_RESPONSE_NOTIFY WF_RULE_ENTRY_ORDER WF_RULE_EVAL_BEGIN WF_RULE_EVAL_END WF_RULE_EVAL_VALUE WF_RULE_FILTER WF_RULE_INVOCATION WF_RULE_NOT_EVALUATED WF_SOFT_REJECT WF_SPOOL_ACTION_BEGIN WF_TIME_TRIGGER WF_TIME_TRIGGERS_BEGIN WF_KNOWLEDGE_ACTION WF_SEND_ACTION WF_CHATTER_POST WF_QUICK_CREATE WF_FLOW_ACTION_BEGIN WF_FLOW_ACTION_END WF_APEX_ACTION FLOW_CREATE_INTERVIEW_BEGIN FLOW_CREATE_INTERVIEW_END FLOW_START_INTERVIEWS_BEGIN FLOW_START_INTERVIEWS_END FLOW_START_INTERVIEW_BEGIN FLOW_START_INTERVIEW_END	DML_BEGIN, DML_END QUERY_MORE_ITERATIONS SAVEPOINT_SET, SAVEPOINT_ROLLBACK SOQL_EXECUTE_BEGIN, SOQL_EXECUTE_END SOSL_EXECUTE_BEGIN, SOSL_EXECUTE_END
DEBUG	DUPLICATE_DETECTION_MATCH_INVOCATION_DETAILS			USER_DEBUG[LoggingLevel.Debug - Default] PUSH_NOTIFICATION_NO_DEVICES PUSH_NOTIFICATION_SENT
FINE	SYSTEM_CONSTRUCTOR_ENTRY, SYSTEM_CONSTRUCTOR_EXIT SYSTEM_METHOD_ENTRY, SYSTEM_METHOD_EXIT		CUMULATIVE_PROFILING CUMULATIVE_PROFILING_BEGIN, CUMULATIVE_PROFILING_END STACK_FRAME_VARIABLE_LIST STATIC_VARIABLE_LIST TOTAL_EMAIL_RECIPIENTS_QUEUED	USER_DEBUG[LoggingLevel.Fine] CONSTRUCTOR_ENTRY, CONSTRUCTOR_EXIT METHOD_ENTRY, METHOD_EXIT			FLOW_BULK_ELEMENT_BEGIN WF_FLOW_ACTION_DETAIL FLOW_ELEMENT_BEGIN FLOW_ELEMENT_END FLOW_BULK_ELEMENT_BEGIN FLOW_BULK_ELEMENT_END
FINER		VF_EVALUATE_FORMULA_BEGIN, VF_EVALUATE_FORMULA_END		USER_DEBUG[LoggingLevel.Finer] HEAP_ALLOCATE, HEAP_DEALLOCATE STATEMENT_EXECUTE			FLOW_ASSIGNMENT_DETAIL FLOW_BULK_ELEMENT_DETAIL FLOW_SUBFLOW_DETAIL FLOW_RULE_DETAIL FLOW_VALUE_ASSIGNMENT FLOW_LOOP_DETAIL
FINEST			LIMIT_USAGE LIMIT_USAGE_FOR_NS	USER_DEBUG[LoggingLevel.Finest] BULK_HEAP_ALLOCATE VARIABLE_ASSIGNMENT VARIABLE_SCOPE_BEGIN, VARIABLE_SCOPE_END	CALLOUT_REQUEST_PREPARE CALLOUT_REQUEST_FINALIZE			IDEAS_QUERY_EXECUTE QUERY_MORE_BEGIN, QUERY_MORE_END

Special Cases:

1. USER_DEBUG
2. MAXIMUM_DEBUG_LOG_SIZE_REACHED

See also:

• Setting Debug Log Filters - Debug Event Types
• Salesforce Winter ’16 Release Notes - Receive Less Granular Logs at the Debug Level for Apex Code