What is dunning?
Dunning is a way for you to reach out to customers when their payment method fails and to help facilitate an alternative method of payment. A failed payment is usually caused by incorrect information or an expired card.
How can I send effect dunning communications?
Alert your customers via email or popup regarding a failed payment. Let your customer know that there is an issue and offer them clear, simple steps to resolve the problem. Make sure you use unambiguous language.