Navigate to the Migrate feature and click on Migrate
Pick the desired project from the options of Projects available or search by typing in the search box provided, then click on the Proceed button.
Input the destination URL where you desire to migrate, replacing yourdomain.atlassian.net with your actual domain. Then click on the next button.
Please enter your email address in the space provided, replacing youremail@yourdomain.com with your actual email address, and click on the next button.
Input your API key in the space provided, then click on next.
Note that a user has to generate the API key if it has not been generated previously to proceed. The API key can be generated from a user's settings by navigating to
profile settings -->manage account-->Choose the Security tab. Look up this resource for reference on how to generate an API key.
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A screen similar to the image below is displayed. Verify that all credentials inputted are correct, then click on start migrating.
At the completion of the migration process, a “Success” message is displayed, indicating that all inputted credentials are correct. You can then check the target instance for the migrated project for confirmation.