Solution : https://service.sap.com/sap/support/notes/142886 (SAP Service marketplace login required)
Key words :
input field 'document number', additional key words cancellation, 'cancel billing document', program termination occurs, entries key', program error, transaction vf11, error message, transaction vf14, prerequisites
Related Notes :
309861 | Calling VF05 from VF11 without authorization check |