Move issues from Team managed project to company managed project with Epic and child issues
Platform Notice: Cloud - This article applies to Atlassian products on the cloud platform.
Summary
While moving issues from Team managed project to company managed project bulk operation, you want the Epic and child issue's to be migrated together.
Review the following link to learn more about the limitation's from moving issue from Team managed project to Company managed project
Environment
Jira Cloud
Solution
When you move Epic issue from Team managed project to Company managed project, you will get prompt to move child issues along with Epic issue as well. Selecting this option will help to move Epic and child issues from Team managed project to Company managed project. Refer to the below screen recording.