To use the recurring billing and process the delayed transactions, the credit cards data should be saved in Parallels Business Automation - Standard database. The private data for credit cards saved in Parallels Business Automation - Standard is encrypted with public key and after this, to perform transaction, you need a secret key to decrypt it. Here you can generate the keys pair.
Important: On the next step of the Initial Setup Wizard the key pair generated will be shown on the screen. Please copy it and save in the safe place. This will be the only time when the keys will be shown.
Note that later you can generate the second keys pair to use the second one if the first key pair is lost.
To generate the keys pair to store credit cards data in Parallels Business Automation - Standard: