Authorization Service {#samsungpay-auth-intro}
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You can authorize a payment for Samsung Pay using two different types of decryption methods: `Cybersource` or Merchant. Each decryption method requires a different set of required API fields. In addition, depending on which card type is used, different fields are required for requesting the authorization service.

| Payment Processor |                                                                                                                                              Authorization and Capture Information                                                                                                                                              |
|-------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `HSBC`            | The amount is rounded to the correct number of decimal places for the currency. `HSBC` supports enhanced response codes in authorization response messages. Enhanced response codes provide detailed information about declined transactions. Contact `HSBC` customer support to have this capability enabled for your account. |
[Processor-Specific Information About Authorizations and Captures]