# Chapter 5 — Reprocessing and Sanctions

## Purpose

This chapter covers the replay and sanctions workflows that support model updates, rule changes, and compliance review.

## Reprocessing

Reprocessing is used when a rule change or model adjustment should be applied to historical traffic. It allows teams to:

- replay prior transactions;
- validate the impact of a new rule or model version;
- compare outcomes before rolling out a change broadly.

Example: if a new review rule is added, reprocessing can help confirm whether older transactions would now be flagged differently.

## Sanctions

The sanctions area is used to inspect and manage sanctions-related screening behavior. It supports the broader AML process by ensuring that suspicious or blocked entities are properly surfaced and reviewed.

Example: if a payment appears to involve a high-risk or restricted entity, use the sanctions workflow to review the screening result and decide whether further investigation is needed.

## Recommended workflow

1. Prepare the new rule or model configuration.
2. Create a reprocessing definition for the relevant scope.
3. Review the resulting outcomes before final rollout.
4. Use the sanctions tools to verify screening behavior and support compliance review.

## Operational guidance

- Use reprocessing when you need confidence that a rule or model change behaves correctly on historical data.
- Use sanctions tools when screening and compliance review need to be checked against known watchlists or blocked entities.
- Keep the reprocessing and sanctions workflows connected to the broader case review process so investigations remain consistent.

## Screen walkthrough

### 1. Open the reprocessing area

Use the relevant reprocessing entry point to start a replay for historical traffic.

### 2. Review the outcomes

Compare the replay result with the expected rule or model behavior before broad rollout. If the UI opens a detail drawer or modal for a replay result, use it to inspect the record-level impact before making a decision.

### 3. Check sanctions-related screening

Use the sanctions page when you need to inspect screening outcomes or verify that sanctions-related cases are being surfaced correctly. Open a detail view when you need more context on a flagged entity or screening result.

## Screenshot reference

The relevant screens are:

- Reprocessing: http://demo.ctrmv.com:4010/admin/fraud/labels
- Sanctions: http://demo.ctrmv.com:4010/admin/fraud/sanctions

## Notes

Reprocessing and sanctions are important for both operational quality and regulatory confidence.