diff --git a/lms/nladmin-system/src/main/java/org/nl/wms/pda/service/impl/PdaServiceImpl.java b/lms/nladmin-system/src/main/java/org/nl/wms/pda/service/impl/PdaServiceImpl.java
index 48ab2f8..920e66e 100644
--- a/lms/nladmin-system/src/main/java/org/nl/wms/pda/service/impl/PdaServiceImpl.java
+++ b/lms/nladmin-system/src/main/java/org/nl/wms/pda/service/impl/PdaServiceImpl.java
@@ -159,9 +159,11 @@ public class PdaServiceImpl implements PdaService {
         }
         String vehicleId = vehicle.getString("vehicle_id");
 
+        WQLObject vmTable = WQLObject.getWQLObject("st_ivt_vehicle_material");
+        vmTable.delete("vehicle_id = " + vehicleId);
+
         if (ObjectUtil.isNotEmpty(materials)) {
             WQLObject materialTable = WQLObject.getWQLObject("md_me_materialbase");
-            WQLObject vmTable = WQLObject.getWQLObject("st_ivt_vehicle_material");
             for (Object o : materials) {
                 String code = ((JSONObject) o).getString("code");
                 Double qty = ((JSONObject) o).getDouble("qty");