2535186 - Program SLD_UC / SLD_NUC not registered | SAP Knowledge Base Article

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2535186 - Program SLD_UC / SLD_NUC not registered


 While running connection test in transaction SM59 for programs SLD_UC or SLD_NUC, the following RFC error message can raise:

Logon Connection Error
Error Details Error when opening an RFC connection (CPIC-CALL: 'ThSAPOCMINIT', communication r
Error Details ERROR: program SLD_UC not registered
Error Details LOCATION: SAP-Gateway on host <host> / sapgwXX
Error Details DETAIL: TP SLD_UC not registered
Error Details COMPONENT: SAP-Gateway



  • SAP systems ABAP based on SAP NetWeaver;
  • Connection Test in SM59 or SLDCHECK;
  • Database independent;
  • Operating System Independent.


SAP NetWeaver all versions


SLD_NUC not registered; System Landscape Diretory, Connection; Error; Fail; , KBA , BC-CCM-SLD , System Landscape Directory / Component Repository , BC-CST-GW , Gateway/CPIC , Problem

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