RTP Validation Operations Flow
The following are the validation operations services that support the secure and effective money transfer process:

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Real Time Payments obtains information from the Sender's or Recipient's Payment Instrument using the Alias Directory service or by capturing the necessary cardholder information. 
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The Security Core verifies card attributes (CVV, expiration date, and PAN). - 2.1 The Security Core validates with the corresponding APIs in the networks.
- 2.2 The networks respond to the Security Core after validating the attributes.
 
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The Inquiry Core verifies card characteristics such as card type (Fast Fund Ready or Push Ready), country, currency, among others. - 3.1 The Inquiry Core validates with the corresponding APIs in the networks.
- 3.2 The networks respond to the Inquiry Core after validating key card characteristics.
 
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The Customer Monitoring service checks restrictive lists. This service is optional, and the solution allows it to be turned on or off. - 4.1 Customer Monitoring validates restrictive lists with the network.
- 4.2 The networks respond to Customer Monitoring, providing a score and determining approval or rejection.