Newer installs of Prism require an API key to connect with the till configuration in the eyos backend. If Prism is not provided with an API key (or is provided with an invalid key), you can still install it but it will be in a dormant state on your till:
There are 3 ways to provide an API key to eyos Prism.
Dialog box via the tray icon
If Prism is already installed but not authenticated, you can select the option from the tray to enter the access key manually:
From here you can paste your access key into the text box, press okay, and then Prism should start configuring with the backend.
Command line argument
For more automated rollouts, you can also run the installer from the command line and provide the API key as the CLOUD_AUTH_KEY argument:
eyos_prism.msi CLOUD_AUTH_KEY="{your-api-key}"Companion config file
This is intended for more decentralized installs that does not require as much manual input as the tray dialog. Contact eyos support to get a PreConfig.xml file that will contain the API key. If you install the MSI with this PreConfig.xml file in the same directory then the API key will be pre-provided once prism installs.