2562786 - PI SOAP Receiver synchronous Response mapping failed

• You have configured a Process Integration (PI) or Process Orchestration (PO) synchronous scenario with the SOAP Receiver Adapter
• You have configured the Response Mapping which has been successfully tested in the Enterprise Services Repository (ESR) test tool using dummy data
• Despite this, the Response mapping is failing with the error similar to:
  Transmitting the message using connection SOAP_http://sap.com/xi/XI/System failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Error encountered while executing mapping: com.sap.aii.af.service.mapping.MappingException: Mapping failed in runtimeRuntime Exception when executing application mapping program com/sap/xi/tf/<Response_Mapping_Name>;
  Details: com.sap.aii.mappingtool.tf7.IllegalInstanceException; Cannot create target element /ns1:<xxx>/<xxx>. Values missing in queue context. Target XSD requires a value for this element, but the target-field mapping does not create one. Check whether the XML instance is valid for the source XSD, and whether the target-field mapping fulfils the requirement of the target XSD
• or: 
  Error: SOAP: Response message contains an errorXIAdapter/HTTP/ADAPTER.HTTP_EXCEPTION - HTTP 500 Internal Server Error
  Error: Transmitting the message using connection AFW failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Error encountered while executing mapping: com.sap.aii.af.service.mapping.MappingException: com.sap.aii.utilxi.misc.api.ResourceException: Could not determine mapping steps for message
• Mandatory fields are configured in the mapping

• PI Release Independent
• SAP NetWeaver
• SAP Process Integration

Process Integration 7.0, PI 7.0, PI 7.01, PI 7.02, Process Integration 7.10, PI 7.10, Process Integration 7.11, PI 7.11, Process Integration 7.30, PI 7.30, Process Integration 7.31, PI 7.31, Process Orchestration 7.40, PI 7.40, PO 7.40, Process Orchestration 7.50, PI 7.50, PO 7.50, NetWeaver, XI, AEX, SOAP Receiver, request, Web Service, provider, vendor, partner, errorXIAdapter/HTTP/ADAPTER.HTTP_EXCEPTION, HTTP, 500, Internal, Server, Error, , KBA , BC-XI-IBD-MAP , Integration Builder Design - Mapping , BC-NWA-XPI , Process Integration (PI) Monitoring , BC-XI-CON-SOP , SOAP Adapter , Problem