diff --git a/erpnext/accounts/doctype/pos_invoice/pos_invoice.json b/erpnext/accounts/doctype/pos_invoice/pos_invoice.json
index b126d57..6f8b382 100644
--- a/erpnext/accounts/doctype/pos_invoice/pos_invoice.json
+++ b/erpnext/accounts/doctype/pos_invoice/pos_invoice.json
@@ -1553,7 +1553,7 @@
  "icon": "fa fa-file-text",
  "is_submittable": 1,
  "links": [],
- "modified": "2022-03-22 13:00:24.166684",
+ "modified": "2022-09-27 13:00:24.166684",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "POS Invoice",
diff --git a/erpnext/accounts/doctype/pos_invoice/pos_invoice.py b/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
index 6e3a076..a5e4d9a 100644
--- a/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
+++ b/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
@@ -740,3 +740,7 @@
 		]:
 			payment_mode = get_mode_of_payment_info(mode_of_payment, doc.company)
 			append_payment(payment_mode[0])
+
+
+def on_doctype_update():
+	frappe.db.add_index("POS Invoice", ["customer", "is_return", "return_against"])