fix error item margin if down payment invoice

1 files changed, 1 insertions, 1 deletions

diff --git a/indoteknik_custom/models/sale_order.py b/indoteknik_custom/models/sale_order.py
index 854a482a..6f901809 100755
--- a/indoteknik_custom/models/sale_order.py
+++ b/indoteknik_custom/models/sale_order.py
@@ -92,7 +92,7 @@ class SaleOrderLine(models.Model):
 
     def compute_item_margin(self):
         for line in self:
-            if not line.product_id or line.price_unit <= 0:
+            if not line.product_id or line.price_unit <= 0 or line.product_uom_qty <= 0:
                 line.item_margin = 0
                 line.item_percent_margin = 0
                 continue