diff --git a/addons/stock_landed_costs/models/stock_landed_cost.py b/addons/stock_landed_costs/models/stock_landed_cost.py
index a1223d896c8..5e5c88031c7 100644
--- a/addons/stock_landed_costs/models/stock_landed_cost.py
+++ b/addons/stock_landed_costs/models/stock_landed_cost.py
@@ -85,11 +85,13 @@ class LandedCost(models.Model):
             raise UserError(_('Cost and adjustments lines do not match. You should maybe recompute the landed costs.'))
 
         for cost in self:
-            move = self.env['account.move'].create({
+            move = self.env['account.move']
+            move_vals = {
                 'journal_id': cost.account_journal_id.id,
                 'date': cost.date,
-                'ref': cost.name
-            })
+                'ref': cost.name,
+                'line_ids': [],
+            }
             for line in cost.valuation_adjustment_lines.filtered(lambda line: line.move_id):
                 per_unit = line.final_cost / line.quantity
                 diff = per_unit - line.former_cost_per_unit
@@ -134,8 +136,9 @@ class LandedCost(models.Model):
                 for quant in line.move_id.quant_ids:
                     if quant.location_id.usage != 'internal':
                         qty_out += quant.qty
-                line._create_accounting_entries(move, qty_out)
-            move.assert_balanced()
+                move_vals['line_ids'] += line._create_accounting_entries(move, qty_out)
+
+            move = move.create(move_vals)
             cost.write({'state': 'done', 'account_move_id': move.id})
             move.post()
         return True
@@ -336,11 +339,10 @@ class AdjustmentLines(models.Model):
         Generate the account.move.line values to track the landed cost.
         Afterwards, for the goods that are already out of stock, we should create the out moves
         """
-        AccountMoveLine = self.env['account.move.line'].with_context(check_move_validity=False, recompute=False)
+        AccountMoveLine = []
 
         base_line = {
             'name': self.name,
-            'move_id': move.id,
             'product_id': self.product_id.id,
             'quantity': self.quantity,
         }
@@ -354,8 +356,8 @@ class AdjustmentLines(models.Model):
             # negative cost, reverse the entry
             debit_line['credit'] = -diff
             credit_line['debit'] = -diff
-        AccountMoveLine.create(debit_line)
-        AccountMoveLine.create(credit_line)
+        AccountMoveLine.append([0, 0, debit_line])
+        AccountMoveLine.append([0, 0, credit_line])
 
         # Create account move lines for quants already out of stock
         if qty_out > 0:
@@ -375,8 +377,8 @@ class AdjustmentLines(models.Model):
                 # negative cost, reverse the entry
                 debit_line['credit'] = -diff
                 credit_line['debit'] = -diff
-            AccountMoveLine.create(debit_line)
-            AccountMoveLine.create(credit_line)
+            AccountMoveLine.append([0, 0, debit_line])
+            AccountMoveLine.append([0, 0, credit_line])
 
             # TDE FIXME: oh dear
             if self.env.user.company_id.anglo_saxon_accounting:
@@ -396,7 +398,7 @@ class AdjustmentLines(models.Model):
                     # negative cost, reverse the entry
                     debit_line['credit'] = -diff
                     credit_line['debit'] = -diff
-                AccountMoveLine.create(debit_line)
-                AccountMoveLine.create(credit_line)
+                AccountMoveLine.append([0, 0, debit_line])
+                AccountMoveLine.append([0, 0, credit_line])
 
-        return True
+        return AccountMoveLine