# Prerequisites SIGNIUS Harmony relies on certain prerequisites before it can work properly. You'll need 1. To be registered and have a valid account on our signing plattform 2. Have an active Qualified Electronic Signature package with minimum one signatre left. You can obtain them from our shop: 3. The SIGNIUS Harmony installation package for Windows or MacOS. 4. Administrative rights for Windows as the software needs to be installed with this level of privileges.