fix(ux): make PI `rate` field read-only having PR ref
diff --git a/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json b/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
index 71796c9..7cad3ae 100644
--- a/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
+++ b/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
@@ -288,6 +288,7 @@
    "oldfieldname": "import_rate",
    "oldfieldtype": "Currency",
    "options": "currency",
+   "read_only_depends_on": "eval: (!parent.is_return && doc.purchase_receipt && doc.pr_detail)",
    "reqd": 1
   },
   {
@@ -918,7 +919,7 @@
  "idx": 1,
  "istable": 1,
  "links": [],
- "modified": "2023-11-14 18:33:48.547297",
+ "modified": "2023-11-30 16:26:05.629780",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Purchase Invoice Item",