stock recon for serial no, batch no
diff --git a/erpnext/stock/utils.py b/erpnext/stock/utils.py
index 76631fa..ea8e880 100644
--- a/erpnext/stock/utils.py
+++ b/erpnext/stock/utils.py
@@ -277,3 +277,7 @@
 					new_row.append(None)
 
 		result[row_idx] = new_row
+
+def get_available_serial_nos(item_code, warehouse):
+	return frappe.get_all("Serial No", filters = {'item_code': item_code,
+		'warehouse': warehouse, 'delivery_document_no': ''}) or []
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