If you select one of the Sonic Extensions Patches or FX units and see the following Notice, it means that Omnisphere hasn’t yet ben authorized to use it.
Follow the steps detailed here on how to authorize your Sonic Extension(s) in Omnisphere.
If you are returned to the Welcome to the Omnisphere Authorization System after reopening the instrument, that means the plug-in did not accept the Response Code and it may have been incorrectly entered.
Try authorizing again with the instructions given in the Authorization section. Make sure you are entering the code given by the website and NOT the serial number from your user guide.
Need more help with this?
Spectrasonics Customer Support