Migration steps for moving Zephyr Squad in the cloud to Zephyr Scale in Datacenter

Hi all,

We have a need to migrate a customer out of Atlassian cloud and into Datacenter

They are using Zephyr Squad on the cloud side and Zephyr Scale is in use on the target side

Are there recommended routes for migrating this data? Does any tooling exist beyond the APIs? 

Thanks

-bpw