diff --git a/purchase_request/tests/test_purchase_request.py b/purchase_request/tests/test_purchase_request.py
index b8ff25b627e..86b48751e7b 100644
--- a/purchase_request/tests/test_purchase_request.py
+++ b/purchase_request/tests/test_purchase_request.py
@@ -118,6 +118,7 @@ def test_purchase_request_status(self):
         with self.assertRaises(UserError):
             purchase_request_line.unlink()
         purchase = purchase_request_line.purchase_lines.order_id
+        purchase_request_line.purchase_lines.price_unit = 100.0
         purchase.button_done()
         self.assertEqual(purchase.state, "done")
 
diff --git a/purchase_request/tests/test_purchase_request_allocation.py b/purchase_request/tests/test_purchase_request_allocation.py
index b2022e0ba9f..766b595fbf8 100644
--- a/purchase_request/tests/test_purchase_request_allocation.py
+++ b/purchase_request/tests/test_purchase_request_allocation.py
@@ -70,10 +70,11 @@ def test_purchase_request_allocation(self):
             active_ids=[purchase_request_line1.id, purchase_request_line2.id],
         ).create(vals)
         wiz_id.make_purchase_order()
+        (
+            purchase_request_line1 + purchase_request_line2
+        ).purchase_lines.price_unit = 100.0
         purchase_request1.action_view_purchase_order()
         po_line = purchase_request_line1.purchase_lines[0]
-        # Add unit price in PO Line
-        po_line.write({"price_unit": 10})
         purchase = po_line.order_id
         purchase.order_line.action_open_request_line_tree_view()
         purchase.button_confirm()
@@ -157,10 +158,9 @@ def test_purchase_request_allocation_services(self):
             active_model="purchase.request.line", active_ids=[purchase_request_line1.id]
         ).create(vals)
         wiz_id.make_purchase_order()
+        purchase_request_line1.purchase_lines.price_unit = 100.0
         purchase_request1.action_view_purchase_order()
         po_line = purchase_request_line1.purchase_lines[0]
-        # Add unit price in PO Line
-        po_line.write({"price_unit": 10})
         purchase = po_line.order_id
         purchase.button_confirm()
         self.assertEqual(purchase_request_line1.qty_in_progress, 2.0)
@@ -191,6 +191,7 @@ def test_purchase_request_allocation_services(self):
             active_model="purchase.request.line", active_ids=[purchase_request_line2.id]
         ).create(vals)
         wiz_id.make_purchase_order()
+        purchase_request_line2.purchase_lines.price_unit = 100.0
         (purchase_request1 + purchase_request2).action_view_purchase_order()
         po_line = purchase_request_line2.purchase_lines[0]
         purchase2 = po_line.order_id
@@ -229,6 +230,7 @@ def test_purchase_request_allocation_min_qty(self):
             active_model="purchase.request.line", active_ids=[purchase_request_line1.id]
         ).create(vals)
         wiz_id.make_purchase_order()
+        purchase_request_line1.purchase_lines.price_unit = 100.0
         self.assertEqual(
             purchase_request_line1.purchase_request_allocation_ids[0].open_product_qty,
             2.0,
@@ -265,6 +267,9 @@ def test_purchase_request_stock_allocation(self):
         ).create(vals)
         # Create PO
         wiz_id.make_purchase_order()
+        (
+            purchase_request_line1 + purchase_request_line2
+        ).purchase_lines.price_unit = 100.0
         po_line = purchase_request_line1.purchase_lines[0]
         self.assertEqual(po_line.product_qty, 2, "Quantity should be 2")
         self.assertEqual(
@@ -349,6 +354,7 @@ def test_purchase_request_stock_allocation_unlink(self):
         ).create(vals)
         # Create PO
         wiz_id.make_purchase_order()
+        purchase_request_line1.purchase_lines.price_unit = 100.0
         po_line = purchase_request_line1.purchase_lines[0]
         self.assertEqual(
             purchase_request_line1.purchase_request_allocation_ids[
diff --git a/purchase_request/wizard/purchase_request_line_make_purchase_order.py b/purchase_request/wizard/purchase_request_line_make_purchase_order.py
index 8386e264c4f..2738d4f9131 100644
--- a/purchase_request/wizard/purchase_request_line_make_purchase_order.py
+++ b/purchase_request/wizard/purchase_request_line_make_purchase_order.py
@@ -303,17 +303,17 @@ def _post_process_po_line(self, item, po_line, new_pr_line):
         new_qty = self.env["purchase.request.line"]._calc_new_qty(
             line, po_line=po_line, new_pr_line=new_pr_line
         )
-        po_line.product_qty = new_qty
-        if item.keep_estimated_cost:
-            po_line.price_unit = price_unit
-            po_line._compute_amount()
         # The quantity update triggers a compute method that alters the
         # unit price (which is what we want, to honor graduate pricing)
         # but also the scheduled date which is what we don't want.
         date_required = line.date_required
-        po_line.date_planned = datetime(
+        date_planned = datetime(
             date_required.year, date_required.month, date_required.day
         )
+        po_line.write({"product_qty": new_qty, "date_planned": date_planned})
+        if item.keep_estimated_cost:
+            po_line.price_unit = price_unit
+            po_line._compute_amount()
 
 
 class PurchaseRequestLineMakePurchaseOrderItem(models.TransientModel):