I am not sure if this is right, why issue a receipt against a Sales Invoice, that would be unnecessary then. Invoices are not about receipts and payments but record the sales or purchase. Forcing the use of Sales orders when managing inventory is not common and may bring order to some of the issues that were raised around inventory quantities and the related status but maybe you could adopt approaches that Point of Sales systems have been using that often mainly depend on Sales invoices and not even have the possibility of Sales orders.