diff --git a/stock_valuation_fifo_lot/i18n/ja.po b/stock_valuation_fifo_lot/i18n/ja.po
index bd577bfe..ab7d707c 100644
--- a/stock_valuation_fifo_lot/i18n/ja.po
+++ b/stock_valuation_fifo_lot/i18n/ja.po
@@ -141,6 +141,15 @@ msgstr ""
 msgid "No Reason Given"
 msgstr "理由が指定されていません"
 
+#. module: stock_valuation_fifo_lot
+#. odoo-python
+#: code:addons/stock_valuation_fifo_lot/wizard/stock_valuation_layer_revaluation.py:0
+#, python-format
+msgid ""
+"No quant found for the given lot and can't do revaluation. Please ensure the"
+" lot is in an internal location."
+msgstr "指定ロットの在庫数量が見つからず、再評価できません。ロットが内部ロケーションにあることを確認してください。"
+
 #. module: stock_valuation_fifo_lot
 #: model:ir.model,name:stock_valuation_fifo_lot.model_stock_move_line
 msgid "Product Moves (Stock Move Line)"
diff --git a/stock_valuation_fifo_lot/wizard/stock_valuation_layer_revaluation.py b/stock_valuation_fifo_lot/wizard/stock_valuation_layer_revaluation.py
index 782afe8d..3cd6d218 100644
--- a/stock_valuation_fifo_lot/wizard/stock_valuation_layer_revaluation.py
+++ b/stock_valuation_fifo_lot/wizard/stock_valuation_layer_revaluation.py
@@ -105,6 +105,13 @@ def action_validate_revaluation(self):
                 ("location_id.usage", "=", "internal"),
             ]
         )
+        if not quants:
+            raise UserError(
+                _(
+                    "No quant found for the given lot and can't do revaluation. "
+                    "Please ensure the lot is in an internal location."
+                )
+            )
         quants = quants.with_context(
             inventory_name=description,
             lot_revaluation_account=self.account_id,