Solution : https://service.sap.com/sap/support/notes/872785 (SAP Service marketplace login required)
Key words :
attendee list report rhteiln0, rh_start_wword_with_data function module, terms rh_start_wword_with_data reason, incorrect code page, cl_gui_frontend_services class determines, basis support package 51, attendee list, displayed differently, gui_download method, explicit specification
Related Notes :
765763 | Setting the Upload/Download codepage for a SAPGUI connection |