Business keyy

What is business key?
What does business key do?
Where it comes to usage?
Please explain it in simple terms

A business key is essentially a unique identifier that is generated outside of Camunda and is specific to you process application. You can map this identifier into Camunda as a businessKey to make it easier to search/filter for the specific instance inside of Camunda.

An example would be if you had an order management system where every order started a Camunda workflow. The id of the order (generated from an external ordering system) could be used as the businessKey in Camunda. Then it would be much easier to search for the Order inside of Camunda because the businessKey is an indexed field in the database.

A more detailed article can be found here https://blog.camunda.com/post/2018/10/business-key/

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