When a new fiscal year begins, invoicing will typically continue in both fiscal years for a limited time - invoicing in the old year against old year purchase orders and invoicing in the new year against new year POs.  However, from time to time there will be a need to invoice in the new year against a prior year PO.  This cannot be done until the purchase orders have been rolled forward to the new year -- after which time they will no longer be able to be invoiced in the old year.  So it will be wise to find that 'sweet spot' where more invoicing against old year POs needs to be done in the new year than in the old, and then run the 'Final Year End' (which is not actually 'final' as it may be rerun as many times as necessary); this is the portion of the year end that carries forward outstanding purchase orders (if configured to do so in the year end settings).

Of course, invoices without purchase orders may be entered into batches of either year as needed.

If you have any questions or comments about this, please log a ticket in the client portal.