Can you not activate subscription license first, and then deactivate the perpetual license? Just a suggestion...
I also thought so once. But tableau vendor said, subscription licenses and perpetual licenses can't be activated in the same server at the same time.
Per checking, subscription licenses such as creator, explorer, viewer can't be activated on the tableau server 10.5 or an earlier version. So i must upgrade tableau server 2018.1 or later, and then activate subscription licenses. Below steps for your reference:
- Make sure whether perpetual licenses have expired or not. if the expire day < the publish day of the new version you want to upgrade, please deactivate perpetual licenses on the tableau server 10.5 or earlier version
- Back up
- Uninstall tableau server 10.5
- Install tableau server 2018.1 or later on the same path
- Restore by backup file
- Activate subscription licenses in new version
I would suggest that you install Tableau 2018.* on a new server rather than on the existing server. That way, you will have a working backup server.