How do I modify the auto-generated invoice number for the new financial year?
You can modify the auto-generated invoice number easily.
Go to the Invoices module in the left sidebar.
Click the + New button in the top right corner.
Click the Gear icon next to the Invoice# field. Edit the prefix of the invoice number based on the new financial year’s sequence. For example, if you’ve been using INV17-xxxx, you can change it to INV18-xxxx.
Now, the invoice number will be auto-generated with the new prefix for every new invoice.