I work for Company AAA, developing a product for Company BBB.
The project's Jira and Confluence current reside in Jira+Confluence Cloud sites owned by Company AAA. With as little disruption as possible, we want to hand the project over to Company BBB. AAA simply needs to retain a historical snapshot of what's currently in Confluence.
1. I suppose one solution is for AAA to export everything in the site's Jira and Confluence and then BBB imports it into their own account.
2. Or AAA could just make their own export of Confluence and then transfer the entire aaa.atlassian.net account ownership to BBB. Then BBB would just update the billing.
What technique would work best? Why?
FWIW AAA only has this one project in Atlassian, so no worries about the transfer affecting anything else.