Monitor Dwolla ACH return rates against the NACHA 3.0% administrative return threshold and remediate breaches

Verified steps

1. Log in to the Dwolla Dashboard and navigate to the ACH Return Rates Report to view your current administrative return rate (R02, R03, R04) calculated over the preceding 60 days.
2. Confirm you are monitoring all three NACHA thresholds: unauthorized (R05, R07, R10, R11, R29, R51) at 0.5%, administrative (R02, R03, R04) at 3.0%, and overall at 15% — each measured separately against ACH debit origination volume.
3. Subscribe to Dwolla's return webhooks (transfer_failed event type) and extract the return_code from the failure object to categorize returns automatically.
4. If the administrative rate approaches 3.0%, initiate account number verification (micro-deposits or Plaid/Dwolla Instant Bank Verification) for new funding sources before originating further debits.
5. For R02 (account closed) and R03 (no account/unable to locate) returns, immediately mark the stored bank account as invalid and prompt the customer to re-link; for R04 (invalid account number) correct the routing/account data from a NOC (C-code) or direct customer correction.
6. Produce a monthly return-rate report by dividing the count of administrative returns by total origination volume and store it for NACHA audit readiness.