Customer service properties are required to check for major case synchronization with its child casesIssue Customer service properties are required to check for major case synchronization with its child cases.ResolutionRegarding major case synchronization with its child cases, the following things need to be verified: Business rule: Sync child case fields upon parent change should be in OOTB versionThe system property sn_customerservice.case_fields_to_sync should have the value set as "priority, state, comments, work_notes, close_notes, resolution_code, product".Go to Customer Service > Properties. Check that "Synchronize fields from parent to child cases" is set to Yes.