diff --git a/chat/server/src/main/java/com/tencent/supersonic/chat/server/rest/ChatController.java b/chat/server/src/main/java/com/tencent/supersonic/chat/server/rest/ChatController.java
index c3af4f9d0..17c3db90c 100644
--- a/chat/server/src/main/java/com/tencent/supersonic/chat/server/rest/ChatController.java
+++ b/chat/server/src/main/java/com/tencent/supersonic/chat/server/rest/ChatController.java
@@ -22,11 +22,10 @@ public class ChatController {
     private ChatManageService chatService;
 
     @PostMapping("/save")
-    public Boolean save(@RequestParam(value = "chatName") String chatName,
+    public Long save(@RequestParam(value = "chatName") String chatName,
             @RequestParam(value = "agentId", required = false) Integer agentId,
             HttpServletRequest request, HttpServletResponse response) {
-        chatService.addChat(UserHolder.findUser(request, response), chatName, agentId);
-        return true;
+        return chatService.addChat(UserHolder.findUser(request, response), chatName, agentId);
     }
 
     @GetMapping("/getAll")
diff --git a/headless/server/src/main/java/com/tencent/supersonic/headless/server/utils/ModelConverter.java b/headless/server/src/main/java/com/tencent/supersonic/headless/server/utils/ModelConverter.java
index 4bbcd7c2d..f99e7223d 100644
--- a/headless/server/src/main/java/com/tencent/supersonic/headless/server/utils/ModelConverter.java
+++ b/headless/server/src/main/java/com/tencent/supersonic/headless/server/utils/ModelConverter.java
@@ -273,12 +273,14 @@ public class ModelConverter {
         List<Measure> measures = modelReq.getModelDetail().getMeasures();
         List<Dimension> dimensions = modelReq.getModelDetail().getDimensions();
         List<Identify> identifiers = modelReq.getModelDetail().getIdentifiers();
+        List<Field> fields = modelReq.getModelDetail().getFields();
 
         if (measures != null) {
             for (Measure measure : measures) {
                 if (StringUtils.isNotBlank(measure.getBizName())
                         && StringUtils.isBlank(measure.getExpr())) {
                     measure.setExpr(measure.getBizName());
+                    fields.add(new Field(measure.getBizName(), ""));
                 }
             }
         }
@@ -287,6 +289,7 @@ public class ModelConverter {
                 if (StringUtils.isNotBlank(dimension.getBizName())
                         && StringUtils.isBlank(dimension.getExpr())) {
                     dimension.setExpr(dimension.getBizName());
+                    fields.add(new Field(dimension.getBizName(), ""));
                 }
             }
         }
@@ -297,6 +300,7 @@ public class ModelConverter {
                     identify.setName(identify.getBizName());
                 }
                 identify.setIsCreateDimension(1);
+                fields.add(new Field(identify.getBizName(), ""));
             }
         }