Solution : https://service.sap.com/sap/support/notes/726874 (SAP Service marketplace login required)
Key words :
terms ocx controls rfc authority run-time error '61704' reason, symptom function module authority check failuredetails, prerequisites ocx rfc controls, add advanced authorization properties, function group rfch, advanced general info, customer message number, calling rfcgetstructureinfoastableinstead, older versions, calling internallyrfc_get_unicode_structure
Related Notes :
93254 | RFC short dump RFC_NO_AUTHORITY |