$request.requestMessageData/requestText concat($reply.replyText, $request.requestMessageData/requestText) concat($reply.replyText, $request.requestMessageData/requestText) concat($reply.replyText, $request.requestMessageData/requestText) $request.requestMessageData/correlationID1 $request.requestMessageData/requestText concat($reply.replyText, $probeInput.probeData)