Yes you can certainly copy a user field across on create. Here's an example rule:
Project automation - Code Barrel JIRA 2017-01-24 08-45-49.png
So I simply used the edit issue action to set the 'Reviewers' user custom field (in your case this would be 'Impacted user'). The trick then is to use a smart-value to set the reporter. Simply type this in the field:
When the rule executes, this will be evaluated to be the username of the reporter of the issue that was created. Hope that helps!
I am trying to do something similar. I need to take the child value from a custom Cascading Select List and copy it to the Application Name field when the issue is created.
FYI I am a novice when it comes to Automation. When I search for the Cascading Select List 1 I am unable to find it in the Choose Fields to set section.
I have multiple projects that use variations of the same base workflow. The variations depend on the requirements of the project or issue type. The variations mostly come in the form of new statuses ...
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