diff --git a/erpnext/assets/doctype/asset_repair/test_asset_repair.py b/erpnext/assets/doctype/asset_repair/test_asset_repair.py
index a9d0b25..90be568 100644
--- a/erpnext/assets/doctype/asset_repair/test_asset_repair.py
+++ b/erpnext/assets/doctype/asset_repair/test_asset_repair.py
@@ -88,8 +88,9 @@
 		from erpnext.stock.doctype.stock_entry.test_stock_entry import make_serialized_item
 
 		stock_entry = make_serialized_item()
-		serial_nos = stock_entry.get("items")[0].serial_no
-		serial_no = serial_nos.split("\n")[0]
+		bundle_id = stock_entry.get("items")[0].serial_no
+		serial_nos = frappe.get_doc("Serial and Batch Bundle", bundle_id).get_serial_nos()
+		serial_no = serial_nos[0]
 
 		# should not raise any error
 		create_asset_repair(
diff --git a/erpnext/stock/doctype/serial_and_batch_bundle/serial_and_batch_bundle.json b/erpnext/stock/doctype/serial_and_batch_bundle/serial_and_batch_bundle.json
index 788c79d..b613f20 100644
--- a/erpnext/stock/doctype/serial_and_batch_bundle/serial_and_batch_bundle.json
+++ b/erpnext/stock/doctype/serial_and_batch_bundle/serial_and_batch_bundle.json
@@ -214,7 +214,6 @@
    "no_copy": 1
   },
   {
-   "default": "today",
    "fieldname": "posting_time",
    "fieldtype": "Time",
    "label": "Posting Time",
@@ -244,7 +243,7 @@
  "index_web_pages_for_search": 1,
  "is_submittable": 1,
  "links": [],
- "modified": "2023-03-23 13:39:17.843812",
+ "modified": "2023-03-24 13:39:17.843812",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Serial and Batch Bundle",