Invoicing without encounter - preventing duplicate invoices

Invoicing without encounter - preventing duplicate invoices

Doc forgets to open encounter for patient. Receptionist checks out patient "invoice without encounter" option. Doc goes back to open encounter & completes chart notes. Signs. Patient INV does not have encounter date attached and payment for visit is not applied to encounter date with chart notes. 

1.  Allow for Encounter date to be edited instead of "---" for tracking purposes and preventing duplicate invoices. 

Currently, receptionist has to delete original paid invoice, go back to completed encounter and create new invoice with payment information. This is too many steps and we have found duplicate invoices. Some with encounter dates and some without. 

Am I missing something here? Is there a setting needing to be changed? 

Thanks,
Danielle