diff --git a/app/models/product_import/entry_validator.rb b/app/models/product_import/entry_validator.rb
index e08360113e..06c1311d3a 100644
--- a/app/models/product_import/entry_validator.rb
+++ b/app/models/product_import/entry_validator.rb
@@ -211,7 +211,7 @@ module ProductImport
       reference_entry = all_entries_for_product(entry).first
       return if entry.variant_unit_name.to_s == reference_entry.variant_unit_name.to_s
 
-      mark_as_not_updatable(entry, "variant_unit_name")
+      mark_as_values_must_be_same(entry, "variant_unit_name")
     end
 
     def producer_validation(entry)
@@ -425,6 +425,11 @@ module ProductImport
                              error: I18n.t("admin.product_import.model.not_updatable"))
     end
 
+    def mark_as_values_must_be_same(entry, attribute)
+      mark_as_invalid(entry, attribute: attribute,
+                             error: I18n.t("admin.product_import.model.values_must_be_same"))
+    end
+
     def import_into_inventory?
       @import_settings.dig(:settings, 'import_into') == 'inventories'
     end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 96153edcd5..839a7fbb5d 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -730,6 +730,7 @@ en:
         not_found: not found in database
         category_not_found: doesn't match allowed categories. See the correct categories to choose from on the product import page, or check that there's no misspelling.
         not_updatable: cannot be updated on existing products via product import
+        values_must_be_same: must be the same for products with the same name
         blank: can't be blank
         products_no_permission: you do not have permission to manage products for this enterprise
         inventory_no_permission: you do not have permission to create inventory for this producer