When using Jobs to manage projects/jobs to be sold to customers, quite a few fields and/or functionality is missing:

1. You cannot use a customer with different "Bill-to Customer No."
2. Generally "Sell-to", "Bill-to", Ship-to" fields should be available on Jobs. Often Jobs can be created weeks or months before customer is invoices - and as it is now you have to have this information noted somewhere else until you're ready to create the invoice - cumbersome.
3. The same for fields like "Your reference", "Our Reference", "External Document No.", payment terms.
4. By now you can only create Sales Invoice from Jobs, and not Sales Order. This means that you cannot issue a Delivery Note before Invoicing. A nuisance to several customers.