feat(credit-note): add checkbox to set valuation rate as zero for expired batch

(cherry picked from commit 04cdf88)

Author: kavin-114

erpnext/selling/doctype/selling_settings/selling_settings.json

@@ -39,6 +39,7 @@
   "enable_cutoff_date_on_bulk_delivery_note_creation",
   "allow_zero_qty_in_quotation",
   "allow_zero_qty_in_sales_order",
+  "set_zero_rate_for_expired_batch",
   "experimental_section",
   "use_legacy_js_reactivity",
   "subcontracting_inward_tab",
@@ -289,6 +290,13 @@
    "fieldname": "use_legacy_js_reactivity",
    "fieldtype": "Check",
    "label": "Use Legacy (Client side) Reactivity"
+  },
+  {
+   "default": "0",
+   "description": "If enabled, system will set incoming rate as zero for stand-alone credit notes with expired batch item.",
+   "fieldname": "set_zero_rate_for_expired_batch",
+   "fieldtype": "Check",
+   "label": "Set Incoming Rate as Zero for Expired Batch"
   }
  ],
  "grid_page_length": 50,
@@ -298,7 +306,7 @@
  "index_web_pages_for_search": 1,
  "issingle": 1,
  "links": [],
- "modified": "2026-01-21 17:28:37.027837",
+ "modified": "2026-01-23 00:04:33.105916",
  "modified_by": "Administrator",
  "module": "Selling",
  "name": "Selling Settings",

erpnext/selling/doctype/selling_settings/selling_settings.py

@@ -44,6 +44,7 @@ class SellingSettings(Document):
 		role_to_override_stop_action: DF.Link | None
 		sales_update_frequency: DF.Literal["Monthly", "Each Transaction", "Daily"]
 		selling_price_list: DF.Link | None
+		set_zero_rate_for_expired: DF.Check
 		so_required: DF.Literal["No", "Yes"]
 		territory: DF.Link | None
 		use_legacy_js_reactivity: DF.Check