Merge pull request frappe#31795 from frappe/mergify/bp/version-13-hot…

…fix/pr-31777

fix: intercompany SO created from Purchase Order throws exception (backport frappe#31777)

erpnext/accounts/doctype/sales_invoice/sales_invoice.py

@@ -2173,13 +2173,13 @@ def make_inter_company_transaction(doctype, source_name, target_doc=None):
 		target_detail_field = "sales_invoice_item" if doctype == "Sales Invoice" else "sales_order_item"
 		source_document_warehouse_field = "target_warehouse"
 		target_document_warehouse_field = "from_warehouse"
+		received_items = get_received_items(source_name, target_doctype, target_detail_field)
 	else:
 		source_doc = frappe.get_doc(doctype, source_name)
 		target_doctype = "Sales Invoice" if doctype == "Purchase Invoice" else "Sales Order"
 		source_document_warehouse_field = "from_warehouse"
 		target_document_warehouse_field = "target_warehouse"
-
-	received_items = get_received_items(source_name, target_doctype, target_detail_field)
+		received_items = {}
 
 	validate_inter_company_transaction(source_doc, doctype)
 	details = get_inter_company_details(source_doc, doctype)