Requirement is I will be entering emailaddresses on UI and it will be passed to the integration and the integration will return the emailAddresses with GUIDs . If any emailaddress is missing from the response which we entered then it must show that emailaddress on UI. Suppose I have passed test@test.com and test2@test.com and In repsonsed I get only GUID of only one emailaddress then it has to show the 2nd emailaddress on the UI as invalid error . How Can I achieve it
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Seems like integration type is "get". If Yes, i don't think you need extra process instance. you can call the integration in your interface and you can do the similar calculation as Mike mentioned above to search the output.