A way to prevent invoices with incorrect nominal/cost centre/department combinations to be posted via the invoicing module

If you raise an invoice via a sales order and you accidentally type in the wrong nominal/CC/department combination it highlights yellow as a warning that that does not exist giving you the opportunity to check and correct. However in the invoicing module there is no warning if the nominal doesn't exist and it still allows you to post but it posts to the suspense account meaning at month end you have to journal any incorrectly posted transactions. It would be so much easier if it either highlighted yellow as it does in the sales order or if it prevented you from posting unless there's a legitimate nominal entered.