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                    |
|-------------------|-----------------------------------------------------------------------------|
| `GPN`             | Amounts for authorizations, captures, and credits are limited to 10 digits. |
[Processor-Specific Information About Authorizations and Captures]