On Juni, you can easily mark invoices as paid, or delete them, from your Payments tab.
Please note, you will not be able to delete invoices from Juni. You can delete any invoice that you uploaded manually, via an integration or email forwarding.
To mark an invoice as paid or delete it:
Log in and go to Money > Payments
Identify the invoice you'd like to delete and select it
Click on More actions
You can now select Mark as paid or Delete invoice
