It has often happened that an employee has forgotten to add an object, type of job, or work (unless these are mandatory fields) when registering working hours. When you generate the jobs report, you discover that the employee has a difference between the hours on the timesheet and the hours on the report. The difference comes from the fact that, for example, without a site or type of work, the report does not count the number of hours if the "Show all rows" checkbox is not checked.

If you check the box "Show all rows", the report also shows registrations without an object, type of job, or work: