We've migrated a Jira Service Desk project to Youtrack and Setup the Old Jira Project as a Help Desk as described here: https://www.jetbrains.com/help/youtrack/standalone/Use-YouTrack-as-a-Help-Desk.html#
For new issues this works perfectly fine - but for all Old Issues we have the problem that Jira created (now in YouTrack banned) Users for each creator. This is basically not a problem, but we need to attach the mail address of the creator to the "Last message related emails" and "All related emails" field. Is there a way to automate this?
Thank you and kind regards,