diff --git a/erpnext/accounts/doctype/sales_invoice_item/sales_invoice_item.json b/erpnext/accounts/doctype/sales_invoice_item/sales_invoice_item.json
index e7536e9bb94..5326a001047 100644
--- a/erpnext/accounts/doctype/sales_invoice_item/sales_invoice_item.json
+++ b/erpnext/accounts/doctype/sales_invoice_item/sales_invoice_item.json
@@ -870,7 +870,8 @@
    "label": "Purchase Order",
    "options": "Purchase Order",
    "print_hide": 1,
-   "read_only": 1
+   "read_only": 1,
+   "search_index": 1
   },
   {
    "fieldname": "column_break_92",
@@ -926,7 +927,11 @@
  "idx": 1,
  "istable": 1,
  "links": [],
+<<<<<<< HEAD
  "modified": "2024-02-25 15:56:44.828634",
+=======
+ "modified": "2024-05-23 16:36:18.970862",
+>>>>>>> 0303d7dbdc (fix: add in some indices to speed up Purchase Order deletion)
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Sales Invoice Item",
diff --git a/erpnext/selling/doctype/sales_order/sales_order.json b/erpnext/selling/doctype/sales_order/sales_order.json
index 3a045d5ff2d..0695c3fd9c4 100644
--- a/erpnext/selling/doctype/sales_order/sales_order.json
+++ b/erpnext/selling/doctype/sales_order/sales_order.json
@@ -1139,7 +1139,8 @@
    "hide_seconds": 1,
    "label": "Inter Company Order Reference",
    "options": "Purchase Order",
-   "read_only": 1
+   "read_only": 1,
+   "search_index": 1
   },
   {
    "fieldname": "project",
@@ -1645,7 +1646,7 @@
  "idx": 105,
  "is_submittable": 1,
  "links": [],
- "modified": "2024-03-29 16:27:41.539613",
+ "modified": "2024-05-23 16:35:54.905804",
  "modified_by": "Administrator",
  "module": "Selling",
  "name": "Sales Order",