Solution : https://service.sap.com/sap/support/notes/679232 (SAP Service marketplace login required)
Key words :
terms sap mapi reason, 2-digit language code fails, sap mapi users, line=1402 code=27 solution, sap service providerrfc_io27rfc_drv=, symptom rfc logon, -mentioned patch level, german language, language id, patch level 1580
Related Notes :
| 675046 | Logon of external programs fails after kernel update |