If you are a Marketplace Vendor, looking for a way to support moving your app configuration between different Jira instances, Configuration Manager Service Provider Interface is the solution to your use case. The Configuration Manager's powerful features allow quick capture and transfer of third-party application configurations and new custom field types. Configuration Manager takes care of important dependencies and moves the right configuration elements referenced in the custom field configuration. Configuration Manager SPI documentation presents how you can use the tools offered by Configuration Manager SPI for moving such configurations between different Jira instances.
Javadoc documentation for Configuration Manager Service Provider Interface. The SPI can be implemented by Marketplace Vendors to support moving custom application data with Configuration Manager.