# contractId vs key use cases / patterns for establishing parent-child relationships

**URL:** <https://forum.canton.network/t/contractid-vs-key-use-cases-patterns-for-establishing-parent-child-relationships/4711>\
**Category:** App Development\
**Created:** [June 11, 2022, 4:01pm UTC](https://forum.canton.network/t/contractid-vs-key-use-cases-patterns-for-establishing-parent-child-relationships/4711 "2022-06-11T16:01:19Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![a\_putkov](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.canton.network/a_putkov/32/2971_2.png) [@a\_putkov](https://forum.canton.network/u/a_putkov)\
**Post date:** [October 3, 2022, 8:05pm UTC](https://forum.canton.network/t/contractid-vs-key-use-cases-patterns-for-establishing-parent-child-relationships/4711/5 "2022-10-03T20:05:03Z")

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Update for housekeeping purposes. The answer to this question is provided on a separate thread [here](https://discuss.daml.com/t/related-contracts/5260).

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