chore: patch to set reserved stock in Bin

erpnext/patches.txt

@@ -347,5 +347,6 @@ execute:frappe.db.set_single_value("Payment Reconciliation", "invoice_limit", 50
 execute:frappe.db.set_single_value("Payment Reconciliation", "payment_limit", 50)
 erpnext.patches.v15_0.rename_daily_depreciation_to_depreciation_amount_based_on_num_days_in_month
 erpnext.patches.v15_0.rename_depreciation_amount_based_on_num_days_in_month_to_daily_prorata_based
+erpnext.patches.v15_0.set_reserved_stock_in_bin
 # below migration patch should always run last
 erpnext.patches.v14_0.migrate_gl_to_payment_ledger

erpnext/patches/v15_0/set_reserved_stock_in_bin.py

@@ -0,0 +1,24 @@
+import frappe
+from frappe.query_builder.functions import Sum
+
+
+def execute():
+	sre = frappe.qb.DocType("Stock Reservation Entry")
+	query = (
+		frappe.qb.from_(sre)
+		.select(
+			sre.item_code,
+			sre.warehouse,
+			Sum(sre.reserved_qty - sre.delivered_qty).as_("reserved_stock"),
+		)
+		.where((sre.docstatus == 1) & (sre.status.notin(["Delivered", "Cancelled"])))
+		.groupby(sre.item_code, sre.warehouse)
+	)
+
+	for d in query.run(as_dict=True):
+		frappe.db.set_value(
+			"Bin",
+			{"item_code": d.item_code, "warehouse": d.warehouse},
+			"reserved_stock",
+			d.reserved_stock,
+		)