Having recently asked to transfer from NA to EU, I can assure you this is not possible or even on the cards to do so.
Highlighted on the ticket was every region server has it's own system, therefore they will not be able to transfer.
Install the Black Desert Launcher if the game doesn't start.
The launcher will appear if it's installed.
If it doesn't, try to run your downloaded launcher.
1 Run BlackDesert_Installer_NAEU.exe to install the Black Desert launcher.
2 Start the game once installation is complete.
Having recently asked to transfer from NA to EU, I can assure you this is not possible or even on the cards to do so.
Highlighted on the ticket was every region server has it's own system, therefore they will not be able to transfer.