How do I manage all the invoices that I have sent? Ben Flores November 17, 2016 01:52 Updated Follow You can manage your invoices both from the Flint mobile app as well as the Flint merchant portal. Related articles How can I send an invoice using Flint? How many invoice email reminders will my clients receive? If I have an issue with a transaction who do I contact? Transaction and Monthly Fees Comments 0 comments Article is closed for comments.