During creating JCO connections in SAP Netweaver Admin (nwa) you get following error:

Exception while creating JCo client connection Failed to create new JCO client connection BI_METADATA: com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscapeException: Failed to create new JCO client connection BI_METADATA: com.sap.lcr.api.cimclient.LcrException: CIM_ERR_ACCESS_DENIED: User is not allowed to write CIM instances for class SAP_MsgServJCODestination in domain SLD. at com.sap.lcr.api.cimclient.SimpleResponseAnalyser.raiseExceptionOnError

Solution

Use an user with appopriate authentication under

Visual-Admin -> SLD Data Supplier -> Cim client generation settings