Jira Core: Duplicate workflows from one Jira instance into another instance
Can I import/export my workflows? Can I duplicate workflows in several Jira instances?
In order to reuse existing workflows created in a Jira instance, you can export them and import them into a new Jira instance. In that way, you can share workflows with your customers or with other teams using a distinct Jira instance.
To summarize the process, you'll export the workflow and upload it as an app on the Atlassian Marketplace so other Jira admins can download it.