SAP Knowledge Base Article - Preview

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;


SAP NetWeaver all versions


SLD_NUC not registered; System Landscape Diretory, Connection, error, fail, 748, SLD_UC, program, not registered, gateway, permision, acl_mode , KBA , BC-CCM-SLD , System Landscape Directory / Component Repository , BC-CST-GW , Gateway/CPIC , BC-CCM-SLD-ABA , System Landscape Directory ABAP Connectivity , Problem

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