diff --git a/StockSeeker/models.py b/StockSeeker/models.py
index 1c58442..34d9444 100644
--- a/StockSeeker/models.py
+++ b/StockSeeker/models.py
@@ -11,8 +11,7 @@ class Product(models.Model):
     user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="products")
     stock_limit = models.IntegerField(null=True, blank=True)
     alert_enabled = models.BooleanField(default=False)
-    alert_message = models.CharField(max_length=200, null=True, blank=True,help_text="Message d'alerte")
-
+    
     @property
     def is_stock_low(self):
         return self.alert_enabled and self.stock_limit is not None and self.quantity < self.stock_limit
diff --git a/StockSeeker/serializers.py b/StockSeeker/serializers.py
index 8c00baf..b015ace 100644
--- a/StockSeeker/serializers.py
+++ b/StockSeeker/serializers.py
@@ -33,8 +33,20 @@ class UserSerializer(serializers.ModelSerializer):
 
 class ProductSerializer(serializers.ModelSerializer):
     user = serializers.PrimaryKeyRelatedField(read_only=True)
-    is_stock_low = serializers.BooleanField(read_only=True)
+    is_stock_low = serializers.SerializerMethodField()
 
+    def validate(self, data):
+        if data.get('alert_enabled') and data.get('stock_limit') is None:
+            raise serializers.ValidationError({
+                'product_stock_limit': "Ce champ est obligatoire si une alerte est activée."
+            })
+        return data
+    
     class Meta:
         model = Product
-        fields = ["id", "name", "description", "quantity", "creation_date", "modification_date", "user","stock_limit","alert_enabled","alert_message","is_stock_low"]
\ No newline at end of file
+        fields = ["id", "name", "description", "quantity", "creation_date", "modification_date", "user","stock_limit","alert_enabled","is_stock_low"]
+
+    def get_is_stock_low(self, obj):
+        if not isinstance(obj, Product):
+            return None
+        return obj.is_stock_low
\ No newline at end of file