I have done many tests and always fails.
= Plesk 9.5 to Plesk 12 =
I perform a migration with several domains from Plesk 9.5 and Plesk 12, it runs well. Then I remove all the migrated domains in Plesk 12 server. Then I perform a new migration with the same domains from the same server with Plesk 9.5 to the same server with Plesk 12 and it fails.
The reason is that Plesk 12 doesn't remove the databases attached to the subscriptions. The new migration tries to deploy the databases and it can't because the same databases with the same users are deployed already.
I tried to remove the databases with `plesk bin database` and it was not enough.
Maybe the same error will show when you migrate from Plesk 11.5/12 to Plesk 12. I'm not sure now.
= Plesk 9.5 to Plesk 12 =
I perform a migration with several domains from Plesk 9.5 and Plesk 12, it runs well. Then I remove all the migrated domains in Plesk 12 server. Then I perform a new migration with the same domains from the same server with Plesk 9.5 to the same server with Plesk 12 and it fails.
The reason is that Plesk 12 doesn't remove the databases attached to the subscriptions. The new migration tries to deploy the databases and it can't because the same databases with the same users are deployed already.
I tried to remove the databases with `plesk bin database` and it was not enough.
Maybe the same error will show when you migrate from Plesk 11.5/12 to Plesk 12. I'm not sure now.