Migration path
Custom Content
Automated migration is not possible at the moment.
Unfortunately, we cannot offer an automated migration path for Custom Content gadgets at the moment, as Atlassian is currently not providing a way to support this for third party gadgets.
If you are migrating with the Cloud migration assistant, dashboards will be migrated, but third party gadgets will not.
After migrating from Server / Data Center, your old Custom Content gadgets will no longer be present. You will have to add them again manually with the same configuration as in Server / Data Center.