An ACH Direct Debit payment may be blocked for many reasons, including:

• Stripe Radar determines the payment is high risk
• Bank-initiated failures
• Customer-initiated disputes

If you believe an ACH Direct Debit payment should not have been blocked, navigate to the payment intent within the Dashboard to the payment_intent.payment_failed event. Under the last_payment_error field find the code field to understand why this payment was blocked. Look up the reason code in the blocked bank accounts table in Stripe Docs to identify the required documentation and recommended next steps to unblock the payment.