SAP Knowledge Base Article - Preview

2265435 - Intermittent "Logon not possible (error in license check)" errors during live operation


SAP was up and running for some time, without presenting the issue.

One of the following symptoms started to be observed:

  • Users were not able to logon due to a license related error;
  • RFC entries (like tRFC entries - transaction SM58 - with destination "NONE") started to fail due to a license related error like.

Such license related error is usually "Logon not possible (error in license check)".

This happens despite that the system has a valid license (confirmed through the transaction SLICENSE).

The behavior can affect a single instance.



  • Product independent
  • Release independent
  • Client/Server Technology - License
  • Security


SAP NetWeaver all versions


SAPSECULIB, SAPCryptoLib, CommonCryptoLib, DLENOACCESS, DlLoadLib()==DLENOACCESS, Could not load SSF library, 138 likey_init, Could not initialize the SAPSECULIB, SAPlicense, LIKEY initialisation failed , KBA , BC-CST-SL , SAP License , BC-SEC , Security - Read KBA 2985997 for subcomponents , BC-CST , Client/Server Technology , Problem

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