Dealloack: Sales Update Frequency in Company and Project Monthly on Sales Invoice submit

Code
```python
if frappe.get_single_value("Selling Settings", "sales_update_frequency") == "Each Transaction":
	update_company_current_month_sales(self.company)
	self.update_project()
update_linked_doc(self.doctype, self.name, self.inter_company_invoice_reference)
```