The specified CAPI_CONNECTION statement does not include the attribute that is required to identify a database instance. For PowerExchange Logger for LUW CAPX extractions of IBM i and z/OS source data, a CAPX CAPI_CONNECTION statement that includes the DFLTINST attribute is required, as the DFLTINST value forms part of the key in the CDCT file. For processing Db2 for i data from the change stream, an AS4J CAPI_CONNECTION statement that includes the INST attribute is required. You can locate the AS4J CAPI_CONNECTION statement through the UOWC CAPI_CONNECTION statement > CAPINAME parameter.