Solution : https://service.sap.com/sap/support/notes/308929 (SAP Service marketplace login required)
Summary :
This SAP Note outlines procedures for troubleshooting RFC communication issues using RFC and SAP Logon Control trace files. Problems in client-server communication can be diagnosed with an RFC trace, as it logs error details and RFC function calls to R/3 systems in files named 'dev_rfc.trc' and 'rfc_xxxx.trc'. The 'dev_rfc.trc' focuses on error scenarios, while the latter captures all RFC activities. SAP Logon Control issues are addressed with traces stored in versioned files post-internal version 31. Environment variables RFC_TRACE, RFC_TRACE_DIR, WDTLOG_TRACE, and WDTLOG_TRACE_DIR manage trace processes and their directories, facilitating easier management and retrieval of trace logs. Instructions include setting these variables in different Windows environments and ensuring proper session management to activate the settings.
Key words :
wdtlog_trace=1 activate sap logon control trace wdtlog_trace_dir=, start/settings/control panel/system, \temp set wdtlog_trace=1 set wdtlog_trace_dir=, rfc_trace=1 activate rfc trace rfc_trace_dir=, sap logon control trace files, set rfc_trace=1 set rfc_trace_dir=, terms sap logon control, sap logon control trace, windows ntin windows nt, windows 2000in windows nt
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| 176277 | Generating RFC trace information |
| 153265 | Changes in SAP Logon control (wdtlog.ocx) |
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| 83200 | Host name problems with two network cards under NT4.0 |
| 65325 | Error files and trace files for Remote Function Call (RFC) |
| 63347 | List: CPIC error codes |
| 52959 | sapms..., sapdp.., sapgw.. unknown (or not found) |
| 47682 | Activating the CPIC trace |
| 40024 | Transferring customer files to sapserv# using ftp |