If you're looking to bulk clone issues into another project while maintaining issue links in Jira Cloud and willing to use a third-party app, our app Deep Clone for Jira is an excellent solution.
With Deep Clone, you can:
Bulk clone up to 100,000 issues at once.
Maintain issue links, including the "clones" link between the original and cloned issues.
Clone comments, attachments, issue status, work logs, and more.
Move cloned issues to another project while keeping dependencies intact.
Use Epic/Tree Clone to ensure hierarchical relationships are preserved.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.
I can suggest trying our app Elements Copy & Sync to easily bulk clone issues from one project to another while keeping all the issue data (including links).
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.