A Chart Report can only be added to an existing Tabular Report and cannot be created as stand-alone, therefore go to a Report you have created (see Edit a Report or Create a Report if you're unsure how to do this).
After the Report has run, click on the Edit Charts link at the top of the screen.
You will be taken to the Charts screen. Click on the switch to turn the Chart Report On.
Click on the Create New Chart button.
Click on the type of Chart Report you'd like to use.
Click on the Add Details button (you can also click on the Details tab).
Select the Value you want to summarise using the dropdown menu.
A set of Values will be displayed under the Options section with the default colours of red, yellow and green. These can be amended to any colour you wish, such as company colours, by clicking the colour dropdown.
Click on Save.
Click on Run Report.
The Report results will be displayed.
While building the Report and choosing the relevant Fields, it is important to give some consideration around how you will want to pivot (group) the data, e.g. by the User/Line Manager's name or Organisation Unit, as shown above.
If you find that you have limited Fields available to you once you have clicked on Details, revisit the Fields you have already set up. To do this, click on the Edit Report link at the top of the screen.
Click on the Field Selection tab.
Review the Fields you're already using and add more as required. Don't forget to ensure that you have some appropriate Group By Fields.