Thanks for your suggestion, but that would require that the receiver of the report has access to Workfront. Since I want to send this reports to customers outside my own organisation that's not the case.
Is it possible to automatically send a chart report by email? As far as I can see you only receive the detail report and not the chart.
A workaround is to generate the report by hand and then export the chart report en send it by email, but I want to schedule this automatically.