fix(stock): show actual outgoing rate in ledger preview (#58700)

(cherry picked from commit 71f1edeb1c)

erpnext/controllers/stock_controller.py

@@ -1533,7 +1533,7 @@ def show_accounting_ledger_preview(company: str, doctype: str, docname: str):
 
 @frappe.whitelist()
 def show_stock_ledger_preview(company: str, doctype: str, docname: str):
-	filters = frappe._dict(company=company)
+	filters = frappe._dict(company=company, valuation_field_type="Currency")
 	doc = frappe.get_doc(doctype, docname)
 	doc.check_permission("read")
 	doc.run_method("before_sl_preview")
@@ -1574,7 +1574,7 @@ def get_accounting_ledger_preview(doc, filters):
 	columns = get_gl_columns(filters)
 	gl_entries = get_gl_entries_for_preview(doc.doctype, doc.name, fields)
 
-	gl_columns = get_columns(columns, fields)
+	gl_columns = get_columns(columns, fields, erpnext.get_company_currency(filters.company))
 	gl_data = get_data(fields, gl_entries)
 
 	return gl_columns, gl_data
@@ -1616,7 +1616,7 @@ def get_stock_ledger_preview(doc, filters):
 		columns = get_sl_columns(filters)
 		sl_entries = get_sl_entries_for_preview(doc.doctype, doc.name, fields)
 
-		sl_columns = get_columns(columns, columns_fields)
+		sl_columns = get_columns(columns, columns_fields, erpnext.get_company_currency(filters.company))
 		sl_data = get_data(columns_fields, sl_entries)
 
 	return sl_columns, sl_data
@@ -1635,7 +1635,8 @@ def get_sl_entries_for_preview(doctype, docname, fields):
 			entry["out_qty"] = abs(entry.actual_qty)
 			entry["in_qty"] = 0
 
-		entry["in_out_rate"] = entry["valuation_rate"]
+		if entry.actual_qty < 0:
+			entry["in_out_rate"] = entry.stock_value_difference / entry.actual_qty
 
 	return sl_entries
 
@@ -1644,12 +1645,23 @@ def get_gl_entries_for_preview(doctype, docname, fields):
 	return frappe.get_all("GL Entry", filters={"voucher_type": doctype, "voucher_no": docname}, fields=fields)
 
 
-def get_columns(raw_columns, fields):
-	return [
-		{"name": d.get("label"), "editable": False, "width": 110, "fieldtype": d.get("fieldtype")}
-		for d in raw_columns
-		if not d.get("hidden") and d.get("fieldname") in fields
-	]
+def get_columns(raw_columns, fields, currency):
+	columns = []
+	for source_column in raw_columns:
+		if source_column.get("hidden") or source_column.get("fieldname") not in fields:
+			continue
+
+		column = {
+			"name": source_column.get("label"),
+			"editable": False,
+			"width": 110,
+			"fieldtype": source_column.get("fieldtype"),
+		}
+		if column["fieldtype"] == "Currency":
+			column["options"] = currency
+		columns.append(column)
+
+	return columns
 
 
 def get_data(raw_columns, raw_data):

erpnext/controllers/tests/test_ledger_preview.py

@@ -0,0 +1,23 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+from unittest import TestCase
+from unittest.mock import patch
+
+import frappe
+
+from erpnext.controllers.stock_controller import get_sl_entries_for_preview
+
+
+class TestLedgerPreview(TestCase):
+	def test_in_out_rate_is_only_set_for_outgoing_entries(self):
+		stock_ledger_entries = [
+			frappe._dict(actual_qty=5, stock_value_difference=10),
+			frappe._dict(actual_qty=-5, stock_value_difference=-15),
+		]
+
+		with patch("frappe.get_all", return_value=stock_ledger_entries):
+			entries = get_sl_entries_for_preview("Delivery Note", "DN-0001", [])
+
+		self.assertIsNone(entries[0].get("in_out_rate"))
+		self.assertEqual(entries[1].in_out_rate, 3)

erpnext/public/js/utils/ledger_preview.js

@@ -83,7 +83,7 @@ erpnext.accounts.ledger_preview = {
 		columns.forEach((col) => {
 			if (col.fieldtype === "Currency") {
 				col.format = (value) => {
-					return format_currency(value);
+					return format_currency(value, col.options);
 				};
 			}
 		});