Why is the total number of hours for the month too low/high?

The cockpit is only a mirror of what is imported from your timekeeping system. The first thing you need to check is whether all hours have been updated/confirmed/approved in your timekeeping system. Incorrect mapping could be another reason, or there are departments or categories that are unmapped, ignored or mapped to the wrong place. It will be evident in the cockpit if this has happened.

Click here to read more about timekeeping system mapping.