diff --git a/models/pos_order_line.py b/models/pos_order_line.py
index d552d67..80a747d 100644
--- a/models/pos_order_line.py
+++ b/models/pos_order_line.py
@@ -11,7 +11,7 @@ class PosOrderLine(models.Model):
     # ------------------------------------------------------
     # Fields declaration
     # ------------------------------------------------------
-
+    caisse_id = fields.Char('Id de la caisse')
     # ------------------------------------------------------
     # SQL Constraints
     # ------------------------------------------------------
@@ -69,7 +69,8 @@ class PosOrderLine(models.Model):
                 "seller_code": seller_id.product_code,
                 "ean13": ean13_digit,
                 "ean13_verif": ean13_verif_digit,
-                "is_pos": True
+                "is_pos": True,
+                "balance_id": res.caisse_id
             }
             self.env['pos.transaction'].create(vals)
         return res