Converting Hit policy from collect to Unique

BPMN & Modeling Discussion & Questions
1

Hi,
Am having DMN file with hit policy collect and tested with RestAPI, I got response. But When I convert this file’s hit policy from collect to Unique and tested with same data, I got error like below.

{
“type”: “RestException”,
“message”: “Cannot evaluate decision NE_RULE_002:7:9f5bac9e-3b24-11ed-a839-00224868ceac: Exception while evaluating decision with key ‘null’”
}

Could you please provide any solution?

2

Hi @Junaka,

Please check the logs for the actual failure message.

One reason could be that the decision table contains overlapping rules. With the Unique hit policy, only one rule should match. DMN Hit Policy | docs.camunda.org

Best regards,
Philipp

3