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!
Hey Community mates! Claire here from the Software Product Marketing team. We all know software development changes rapidly, and it's often tough to keep up. But from our research, we've found the h...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs