API Reference > presentation-common > PresentationRules > InstanceLabelOverrideBriefcaseIdSpecification InstanceLabelOverrideBriefcaseIdSpecification Interface Specification that returns ECInstance's briefcase ID in base36 format. Extends InstanceLabelOverrideValueSpecificationBase Properties Name Type Description specType BriefcaseId Type of the specification Defined in presentation/common/src/presentation-common/rules/customization/InstanceLabelOverride.ts Line 127 Last Updated: 29 November, 2022