diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 7f49dfb633..ee523166a6 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -514,6 +514,7 @@ int32_t  taosGetErrSize();
 #define TSDB_CODE_ANA_ANODE_RETURN_ERROR       TAOS_DEF_ERROR_CODE(0, 0x0445)
 #define TSDB_CODE_ANA_ANODE_TOO_MANY_ROWS      TAOS_DEF_ERROR_CODE(0, 0x0446)
 #define TSDB_CODE_ANA_WN_DATA                  TAOS_DEF_ERROR_CODE(0, 0x0447)
+#define TSDB_CODE_ANA_INTERNAL_ERROR           TAOS_DEF_ERROR_CODE(0, 0x0448)
 
 // mnode-sma
 #define TSDB_CODE_MND_SMA_ALREADY_EXIST         TAOS_DEF_ERROR_CODE(0, 0x0480)
diff --git a/source/libs/executor/src/anomalywindowoperator.c b/source/libs/executor/src/anomalywindowoperator.c
index 10643c3a0d..d46c429bef 100644
--- a/source/libs/executor/src/anomalywindowoperator.c
+++ b/source/libs/executor/src/anomalywindowoperator.c
@@ -327,7 +327,7 @@ static int32_t anomalyParseJson(SJson* pJson, SArray* pWindows, const char* pId)
       qError("%s failed to exec forecast, msg:%s", pId, pMsg);
     }
 
-    return TSDB_CODE_ANA_WN_DATA;
+    return TSDB_CODE_ANA_INTERNAL_ERROR;
   } else if (rows == 0) {
     return TSDB_CODE_SUCCESS;
   }
diff --git a/source/libs/executor/src/forecastoperator.c b/source/libs/executor/src/forecastoperator.c
index 9139241b04..b0966a65fe 100644
--- a/source/libs/executor/src/forecastoperator.c
+++ b/source/libs/executor/src/forecastoperator.c
@@ -235,7 +235,7 @@ static int32_t forecastAnalysis(SForecastSupp* pSupp, SSDataBlock* pBlock, const
     }
 
     tjsonDelete(pJson);
-    return TSDB_CODE_ANA_WN_DATA;
+    return TSDB_CODE_ANA_INTERNAL_ERROR;
   }
 
   if (code < 0) {
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index eb80708b86..3b6766fc27 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -377,6 +377,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_ANA_BUF_INVALID_TYPE,        "Analysis invalid buffe
 TAOS_DEFINE_ERROR(TSDB_CODE_ANA_ANODE_RETURN_ERROR,      "Analysis failed since anode return error")
 TAOS_DEFINE_ERROR(TSDB_CODE_ANA_ANODE_TOO_MANY_ROWS,     "Analysis failed since too many input rows for anode")
 TAOS_DEFINE_ERROR(TSDB_CODE_ANA_WN_DATA,                 "white-noise data not processed")
+TAOS_DEFINE_ERROR(TSDB_CODE_ANA_INTERNAL_ERROR,          "tdgpt internal error, not processed")
 
 // mnode-sma
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_SMA_ALREADY_EXIST,        "SMA already exists")