Assess whether a SAR narrative is supportable today from ACH return-reason
August 31, 2026 · SmartSolo
Situation
After a new device from a different metro on a 2am login, ACH return-reason code R10 spike is what payments-risk officer can touch in a mortgage correspondent channel. Fraud Detection will live with Remove access or reverse the item versus Temporary compensating control on this Credit and Identity Fraud file.
Decision
Payments-risk officer in a mortgage correspondent channel must choose Remove access or reverse the item / Temporary compensating control / Approve a documented exception / Hold using ACH return-reason code R10 spike after a new device from a different metro on a 2am login.
Hypotheses to test
- ACH return-reason code R10 spike reads as Remove access or reverse the item once a new device from a different metro on a 2am login is lined up to the same Fraud Detection population.
- ACH return-reason code R10 spike is closer to Temporary compensating control after a new device from a different metro on a 2am login; Remove access or reverse the item would over-claim this Credit and Identity Fraud extract.
- Approve a documented exception is still live in ACH return-reason code R10 spike for payments-risk officer in a mortgage correspondent channel.
- ACH return-reason code R10 spike is missing the fact payments-risk officer needs after a new device from a different metro on a 2am login; stop this Fraud Detection close.
Analysis required
- Map typology and hold authority payments-risk officer actually has in a mortgage correspondent channel.
- Trace funds, counterparties, and reversals in ACH return-reason code R10 spike through the window opened by a new device from a different metro on a 2am login.
- Quantify loss if the hold is released before ACH return-reason code R10 spike is complete.
- For this Fraud Detection Credit and Identity Fraud file, read ACH return-reason code R10 spike against a new device from a different metro on a 2am login and write the one fact that would move a SAR narrative is for payments-risk officer.
Recommendation
Choose Remove access or reverse the item / Temporary compensating control / Approve a documented exception / Hold on this Fraud Detection / Credit and Identity Fraud packet (ACH return-reason code R10 spike after a new device from a different metro on a 2am login). The follow-on Credit and Identity Fraud action is what payments-risk officer does next: implement the option, assign an owner, and log the missing fact.
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