Charts display number series visually and make it easier for users to interpret business data.
If you want to convert charts that you used in SAP NetWeaver BW 2.x or SAP BW 3.x to the current format, you need the standalone Internet Graphics Server (IGS) 6.40. You then need to upgrade to Internet Graphics Server 7.10. You can find more information in SAP Service Marketplace at service.sap.com/instguidesnw.
You can edit charts in Web Application Designer and in Report Designer.
Editing in Web Application Designer
You have created a new Web item of type Chart or selected an existing Web item of type Chart. You then chose Display → Edit Chart field on the Web Item Parameters tab page in the Properties window, thus calling Chart Designer (see Creating Web Applications with BEx Web Application Designer ).
You can also open Chart Designer by:
Editing in Report Designer
You have created a report in Report Designer and chosen Insert → Chart to insert and edit a chart. More information: Functions in the Insert Menu