diff --git a/product_contract/models/contract_line.py b/product_contract/models/contract_line.py
index cc351aff61..4b98ea62a1 100644
--- a/product_contract/models/contract_line.py
+++ b/product_contract/models/contract_line.py
@@ -75,3 +75,6 @@ def _compute_recurring_invoicing_type(self):
     )
     def _compute_recurring_interval(self):
         return super()._compute_recurring_interval()
+
+    def _check_set_successor(self):
+        return self.state == "closed"
diff --git a/product_contract/models/sale_order_line.py b/product_contract/models/sale_order_line.py
index cd2ffa3fc4..9cd616b8cf 100644
--- a/product_contract/models/sale_order_line.py
+++ b/product_contract/models/sale_order_line.py
@@ -86,30 +86,13 @@ def _prepare_contract_line_values(
     def create_contract_line(self, contract):
         contract_line_model = self.env["contract.line"]
         contract_line = self.env["contract.line"]
-        predecessor_contract_line = False
         for rec in self:
-            if rec.contract_line_id:
-                # If the upsell/downsell line start at the same date or before
-                # the contract line to replace supposed to start, we cancel
-                # the one to be replaced. Otherwise we stop it.
-                if rec.date_start <= rec.contract_line_id.date_start:
-                    # The contract will handel the contract line integrity
-                    # An exception will be raised if we try to cancel an
-                    # invoiced contract line
-                    rec.contract_line_id.cancel()
-                elif (
-                    not rec.contract_line_id.date_end
-                    or rec.date_start <= rec.contract_line_id.date_end
-                ):
-                    rec.contract_line_id.stop(rec.date_start - relativedelta(days=1))
-                    predecessor_contract_line = rec.contract_line_id
-            if predecessor_contract_line:
+            rec.contract_line_id.stop(rec.date_start - relativedelta(days=1))
+            if rec.contract_line_id._check_set_successor():
                 new_contract_line = contract_line_model.create(
-                    rec._prepare_contract_line_values(
-                        contract, predecessor_contract_line.id
-                    )
+                    rec._prepare_contract_line_values(contract, rec.contract_line_id.id)
                 )
-                predecessor_contract_line.successor_contract_line_id = new_contract_line
+                rec.contract_line_id.successor_contract_line_id = new_contract_line
             else:
                 new_contract_line = contract_line_model.create(
                     rec._prepare_contract_line_values(contract)