If you have invoices that are set up to automatically collect via a Payment Schedule, you can choose to have Dash send an automatic email to the customer when a payment did not go through.
In the Company Settings page, there is a toggle you will need to turn on in order for the emails to be sent out.
How it Works
If a customer's card is declined for a scheduled payment, they will receive an auto email to alert them and provide a link to Make a Payment online. Only one email will be sent to the customer per week.