What products must be installed in both instances for Cloud-to-Cloud migration?

[Steph Sjostrom]

The documentation for the Cloud-to-Cloud migration mentions that the products on both instances must be the same but doesn't give any details on which ones are applicable. I know Jira, Confluence, Jira Service Management and Jira Product Discovery are applicable but what about Statuspage and Opsgenie?

[Nic Brough -Adaptavist-]

Welcome to the Atlassian Community!

It's talking about the apps and the applications, not just the core products.  If you don't have Statuspage in the target system, and you don't want it, fine, no data for it will be migrated and you lose it.  Similarly for JSM - if that's not present in your target system, you'll lose all your portals and request data during migration.  And the same for all the other applications.

But nothing else will stop working.

The apps are a little different - you do need to have the same apps installed on the target systems as you do on the source, even if you're going to remove them later.  If you don't have them, you may lose the data related to them like the applications, but you could also end up with things not working at all.

[Steph Sjostrom]

@Nic Brough -Adaptavist- You don't need any of the same apps installed on the destination instance. The migration wizard will give you a warning but it won't stop you. I have successfully migrated projects without having a single app installed in the destination instance. And even if you do have the same apps, no app data is migrated.

[Nic Brough -Adaptavist-]

Yes, it will let you proceed, but you can lose data and functionality.  There is app migration data - have a look at the docs for JCMA - vendors had to work with Atlassian to get it to cover their data.