You will see this page after a successful initialization. Click on Open INI letter to open the PDF file in your browser or to download it to your computer. Then print out the INI letter and send it signed to the bank.
A click on Next takes you back to the overview. Your bank connection will then have the status Not yet released. Once the bank has approved your access, update it in the overview, whereupon the status will change to Ready.
You can also have the INI letter displayed retroactively in the overview from the menu More actions.