fix: Auto process deferred accounting for multi-company setup

erpnext/accounts/deferred_revenue.py

@@ -301,9 +301,13 @@ def process_deferred_accounting(posting_date=None):
 	start_date = add_months(today(), -1)
 	end_date = add_days(today(), -1)
 
+	companies = frappe.get_all('Company')
+
+	for company in companies:
 		for record_type in ('Income', 'Expense'):
 			doc = frappe.get_doc(dict(
 				doctype='Process Deferred Accounting',
+				company=company.name,
 				posting_date=posting_date,
 				start_date=start_date,
 				end_date=end_date,