API Reference > presentation-common > PresentationRules > RelatedInstanceSpecificationNew > alias alias alias: string The alias to give for the joined related instance. Used to reference the related instance in instance filter and customization rules. The value must be unique per-specification! pattern ^\w[\w\d]*$ Defined in presentation/common/src/rules/RelatedInstanceSpecification.ts Line 123 Last Updated: 13 June, 2024