If the licensing works 9-5 or 24/7 and we usually schedule the backup to run in the early hours of the morning or very last thing at night, how would this be reflected in licensing fees?

If you only enable the device for monitoring 9-5 and you backup runs from midnight to 4am, then netPrefect™ would not attempt to detect backup failures.

In order to do this you would need to include your backup period in the times that the device is monitored.

This is simple to do when using Pay-as-you-use.