Smart Retry

Smart retry goes beyond the simple "retry every 3 days" approach that most billing systems use by default. Instead of fixed intervals, smart retry analyzes multiple signals to determine when a failed payment is most likely to succeed if retried. These signals include the specific decline code returned, historical success patterns for similar failures, the day of the week, the time of day, and the customer's billing history.

The difference between dumb retries and smart retries is significant. A basic retry schedule might attempt a charge on days 1, 3, 5, and 7 regardless of why it failed. A smart retry system recognizes that an "insufficient funds" decline is most likely to resolve after a typical payday — so it might schedule the retry for the 1st or 15th of the month. A "do not honor" response from the bank might warrant a retry with a slight delay of 4-6 hours (the issuer's fraud system may clear the hold). A "card expired" decline should not be retried at all — it requires a card update.

The data behind smart retries comes from analyzing millions of payment attempts across thousands of businesses. This aggregate data reveals patterns that individual businesses cannot detect from their own transaction volume. For example, Tuesday mornings tend to have higher payment success rates than Friday evenings. Bank processing windows in different countries affect optimal retry windows. Some card issuers have systematic behaviors that can be predicted.

Smart retry systems also manage retry attempt limits to avoid negative consequences. Excessive retries can trigger fraud alerts at the card network level, resulting in the card being blocked entirely. They can also generate customer complaints if each retry triggers a pending charge notification. Intelligent systems balance recovery probability against these risks.

LostChurn's smart retry engine analyzes decline codes from 18 payment processors and uses machine learning to determine the optimal retry time for each individual failure. The system respects processor rate limits, avoids excessive attempts, and coordinates retries with dunning communication for maximum recovery rates.