[@webitel/api-services](../index.html) / [\_models](../modules/_models.html) / CasesCreateCaseRelatedCaseInput # Interface: CasesCreateCaseRelatedCaseInput Structure for related cases input when creating a case. ## Properties ### etag? > `optional` **etag**: `string` Etag of the related case. *** ### relatedTo? > `optional` **relatedTo**: `string` Identifier of the related case. *** ### relationType? > `optional` **relationType**: [`CasesRelationType`](../types/_models.CasesRelationType.html) Type of relation (e.g., duplicate, linked).