Disable mail
Limit access
Install Apps - Notice this is not like Data Center - You cant disable and enable them as You please....

Clean up

I do recommend to clean up first:

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A test - Migrate a project - Delete it - Migrate it again... Gave a lot of (migrated) fields, screens etc etc

Advarsel
Current recommendation seems to be a sire Reset (for Jira and Jira SErvice Management, and then a Big Bang migrate.

Dark Features

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