ACH Return Code R01: Handling Insufficient Funds in Payout Integrations Understanding R01: The Most Common ACH Return When a payout fails, the first thing a developer needs to know is why . The R01 return code—"Insufficient Funds"—is the most frequently encountered ACH return in production syste...
Source: [Dev.to](https://dev.to/payout_rail/ach-return-code-r01-handling-insufficient-funds-in-payout-integrations-2ig6)