Build a new set of reports from short business requests. Decide the row grain and starting population before choosing fields. Workers, positions, candidates, organizations and absences have different identifiers; use the identifier that belongs to the primary business object.
Several requests deliberately retain empty related values or dates. Those blanks can explain why totals don't reconcile, so a neat-looking output isn't the goal. Include the required fields, use the requested report type and run each definition. The tasks mix Simple and Advanced reports to make you choose the available features deliberately. An Advanced report is useful when a related value is needed; a Simple register is enough for basic fields on one object.