Solution : https://service.sap.com/sap/support/notes/684788 (SAP Service marketplace login required)
Summary :
This SAP Note addresses an issue where external RFC logons fail despite correct credentials due to usernames containing blank characters (e.g., "HU GO"). The problem triggers the short dump CALL_FUNCTION_SIGNON_INCOMPL in both RFC test programs and the library, observed when usernames are truncated at the first blank in RFC traces. The solution requires usernames to be enclosed in escaped inverted commas in the RFC connection string. For instance, initializing a connection with startrfc or RfcOpenEx necessitates formatting such as startrfc -u "\"HU GO\"" or RfcOpenEx("... USER=\"HU GO\" ..."). Additionally, applications must dynamically adapt user inputs in connection strings to prevent similar issues.
Key words :
short dump call_function_signon_incompl occurs, terms call_function_signon_incompl reason, fixed user names, external rfc fails, rfc test programs, rfc logon string, problem occurs, rfc library, logon data, connect string
Related Notes :
| 952673 | RfcOpenEx and special characters |