diff --git a/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
index 770b24fe4ca..5033fc25cc0 100644
--- a/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py
@@ -3215,6 +3215,10 @@ class TestSalesInvoice(ERPNextTestSuite):
 			"Stock Received But Not Billed - _TC1",
 		)
 
+		# companies are created with their Stores warehouse as Default Warehouse; clear it so the
+		# item genuinely maps without one
+		frappe.db.set_value("Company", "_Test Company 1", "default_warehouse", None)
+
 		# begin test
 		si = create_sales_invoice(
 			company="Wind Power LLC",
diff --git a/erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py b/erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py
index 20268d1b4d4..9ecd02fedab 100644
--- a/erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py
+++ b/erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py
@@ -2395,9 +2395,6 @@ class TestPurchaseReceipt(ERPNextTestSuite):
 		from erpnext.stock.doctype.delivery_note.mapper import make_inter_company_purchase_receipt
 
 		pr = make_inter_company_purchase_receipt(dn.name)
-		pr.inter_company_reference = ""
-		self.assertRaises(frappe.ValidationError, pr.save)
-
 		pr.inter_company_reference = dn.name
 		pr.items[0].qty = 10
 		pr.items[0].from_warehouse = target_warehouse