diff --git a/l10n_it_delivery_note/models/stock_picking.py b/l10n_it_delivery_note/models/stock_picking.py
index 93da47e0e0e2..574987268d0b 100644
--- a/l10n_it_delivery_note/models/stock_picking.py
+++ b/l10n_it_delivery_note/models/stock_picking.py
@@ -332,49 +332,50 @@ def button_validate(self):
         if delivery_note_to_create and not self.delivery_note_id:
             delivery_note = self._create_delivery_note()
             self.write({"delivery_note_id": delivery_note.id})
-            if self.sale_id:
-                self.sale_id._assign_delivery_notes_invoices(self.sale_id.invoice_ids)
+            if self.mapped("sale_id"):
+                self.mapped("sale_id")._assign_delivery_notes_invoices(
+                    self.mapped("sale_id").invoice_ids
+                )
         return res
 
     def _create_delivery_note(self):
         partners = self._get_partners()
         type_id = self.env["stock.delivery.note.type"].search(
             [
-                ("code", "=", self.picking_type_code),
+                ("code", "=", self[0].picking_type_code),
                 ("company_id", "=", self.company_id.id),
             ],
             limit=1,
         )
         delivery_method_id = self.mapped("carrier_id")[:1]
+        sale_id = self[0].sale_id
         return self.env["stock.delivery.note"].create(
             {
                 "company_id": self.company_id.id,
                 "partner_sender_id": partners[0].id,
-                "partner_id": self.sale_id.partner_id.id
-                if self.sale_id
-                else partners[1].id,
+                "partner_id": sale_id.partner_id.id if sale_id else partners[1].id,
                 "partner_shipping_id": partners[1].id,
                 "type_id": type_id.id,
-                "date": self.date_done,
+                "date": self[0].date_done,
                 "carrier_id": delivery_method_id.partner_id.id,
                 "delivery_method_id": delivery_method_id.id,
                 "transport_condition_id": (
-                    self.sale_id.default_transport_condition_id.id
+                    sale_id.default_transport_condition_id.id
                     or partners[1].default_transport_condition_id.id
                     or type_id.default_transport_condition_id.id
                 ),
                 "goods_appearance_id": (
-                    self.sale_id.default_goods_appearance_id.id
+                    sale_id.default_goods_appearance_id.id
                     or partners[1].default_goods_appearance_id.id
                     or type_id.default_goods_appearance_id.id
                 ),
                 "transport_reason_id": (
-                    self.sale_id.default_transport_reason_id.id
+                    sale_id.default_transport_reason_id.id
                     or partners[1].default_transport_reason_id.id
                     or type_id.default_transport_reason_id.id
                 ),
                 "transport_method_id": (
-                    self.sale_id.default_transport_method_id.id
+                    sale_id.default_transport_method_id.id
                     or partners[1].default_transport_method_id.id
                     or type_id.default_transport_method_id.id
                 ),
diff --git a/l10n_it_delivery_note/tests/test_stock_delivery_note.py b/l10n_it_delivery_note/tests/test_stock_delivery_note.py
index 0a362a507937..92986370907e 100644
--- a/l10n_it_delivery_note/tests/test_stock_delivery_note.py
+++ b/l10n_it_delivery_note/tests/test_stock_delivery_note.py
@@ -57,6 +57,42 @@ def test_partial_delivering_single_so(self):
         picking_backorder.button_validate()
         self.assertTrue(picking_backorder.delivery_note_id)
 
+    # Test validazione di più picking (ad es nel caso di batch picking)
+    def test_multiple_picking(self):
+        user = new_test_user(
+            self.env,
+            login="test",
+            groups="stock.group_stock_manager",
+        )
+        # change user in order to automatically create delivery note
+        # when picking is validated
+        self.env.user = user
+        # creo ordine 1
+        sale_order1 = self.create_sales_order(
+            [
+                self.desk_combination_line,  # 1
+            ],
+        )
+
+        # creo ordine 2
+        sale_order1.action_confirm()
+        sale_order2 = self.create_sales_order(
+            [
+                self.large_desk_line,  # 1
+            ],
+        )
+
+        sale_order2.action_confirm()
+        picking_ids = sale_order1.picking_ids | sale_order2.picking_ids
+
+        # verifico creazione di due ricezioni
+        self.assertEqual(len(picking_ids), 2)
+        sale_order1.picking_ids.move_ids.quantity_done = 1
+        sale_order2.picking_ids.move_ids.quantity_done = 1
+        picking_ids.button_validate()
+        # verifico che la generazione del ddt sia ok
+        self.assertEqual(len(picking_ids.mapped("delivery_note_id")), 1)
+
     # ⇒ "Consegna senza ordine"
     def test_delivery_without_so(self):
         #