Redesign Jira Architecture

[Farbod Jahan]

I am redesigning our Jira architecture (currently 32 projects and aggregating to 5) however is there a way to easily do this? I have my jira project exported but I have bitbucket links to issues that are created. Or do I just have to create each item from scratch again? And if so is there a test environment I can do this before putting it live?