Solution : https://service.sap.com/sap/support/notes/193656 (SAP Service marketplace login required)
Key words :
additional key words application form, symptom syntax error, attached source code, form class is_u_bi_bill, form level doc_item, -mentioned form classes, application form, form classes, application forms, 1 level mr_note_t
Related Notes :
170475 | Bill printout: Incorrect meter reading note |