> For the complete documentation index, see [llms.txt](https://developer.paywall.one/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.paywall.one/payment-orchestration-integration-document/callback-examples/fraud-review.md).

# Fraud Review

<table><thead><tr><th>Key</th><th>Description</th></tr></thead><tbody><tr><td><pre><code>Type
</code></pre></td><td>Notification type<br>See: <a href="/pages/zEIvla8ZN22dNrlNQODr">Review</a></td></tr><tr><td><pre><code>PaymentId
</code></pre></td><td>Payment identity information</td></tr><tr><td><pre><code>IsReverted
</code></pre></td><td>Indicates whether the payment has been canceled or refunded If true the payment has been canceled or refunded If false it has not been canceled or refunded</td></tr><tr><td><pre><code>UniqueCode
</code></pre></td><td>Tracking number assigned to the payment by Paywall</td></tr><tr><td><pre><code>MerchantUniqueCode
</code></pre></td><td>Tracking number provided by the merchant at the time of payment creation</td></tr><tr><td><pre><code>ActionDateTime
</code></pre></td><td>Date/time when the fraud review process was performed</td></tr><tr><td><pre><code>FraudDecision
</code></pre></td><td>Fraud review decision<br><br><mark style="color:$warning;">1 Approved / Marked as False Positive</mark><br><mark style="color:$danger;">2 Rejected and Canceled / Refunded</mark></td></tr><tr><td><pre><code>ReviewerUserId
</code></pre></td><td>User identity information of the user who performed the fraud review process</td></tr><tr><td><pre><code>ReviewerUserEmail
</code></pre></td><td>Email address of the user who performed the fraud review process</td></tr><tr><td><pre><code>Note
</code></pre></td><td><p>Note provided during the fraud review process</p><p></p><p>Max: 255 characters</p></td></tr><tr><td><pre><code>Hash
</code></pre></td><td><p>It is the hash value used to verify that the request comes from Paywall</p><p>It is generated using the Fraud Review Webhook Hash Key created in the Paywall panel</p><p></p><p>The key mentioned above may vary depending on the value of the HashKeyType parameter A dynamic structure must be implemented</p></td></tr><tr><td><p></p><pre><code>HashFormat
</code></pre></td><td>Format type used to generate the hash information<br><br>See: <a href="/pages/CwGK9IsyjWbnxDaBvQOq">Hash Formats</a></td></tr><tr><td><p></p><pre><code>HashKeyType
</code></pre></td><td>Key type used to generate the hash information<br><br>See: <a href="/pages/rGeM863mExwJKspEaXUG">Key Types</a></td></tr></tbody></table>