diff --git a/modules/purchase_trade/pricing.py b/modules/purchase_trade/pricing.py
index 33e3c76..6bc1231 100755
--- a/modules/purchase_trade/pricing.py
+++ b/modules/purchase_trade/pricing.py
@@ -87,6 +87,10 @@ class MtmStrategy(ModelSQL, ModelView):
         'mtm.component', 'strategy', "Components"
     )
 
+    @classmethod
+    def default_active(cls):
+        return True
+    
     def compute_mtm(self):
         pool = Pool()
         Currency = pool.get('currency.currency')
diff --git a/modules/purchase_trade/purchase.py b/modules/purchase_trade/purchase.py
index 1901858..fe05f6c 100755
--- a/modules/purchase_trade/purchase.py
+++ b/modules/purchase_trade/purchase.py
@@ -380,7 +380,7 @@ class Purchase(metaclass=PoolMeta):
                 
                 if line.quantity_theorical:
                     OpenPosition = Pool().get('open.position')
-                    OpenPosition.create_from_purchase_line(line)
+                    # OpenPosition.create_from_purchase_line(line)
                     
                 #line unit_price calculation
                 if line.price_type == 'basis' and line.lots: #line.price_pricing and line.price_components and 
diff --git a/modules/purchase_trade/view/mtm_strategy_form.xml b/modules/purchase_trade/view/mtm_strategy_form.xml
index 061d23a..712f4e9 100644
--- a/modules/purchase_trade/view/mtm_strategy_form.xml
+++ b/modules/purchase_trade/view/mtm_strategy_form.xml
@@ -5,6 +5,8 @@
     <field name="scenario"/>
     <label name="currency"/>
     <field name="currency"/>
+    <label name="active"/>
+    <field name="active"/>
     <newline/>
     <field name="components" colspan="4"/>
 </form>
\ No newline at end of file