- Introduction to Payments
- Standard Payment Processing
- Card Present Connect | Retail Processing
- Card Present Connect | Mass Transit Processing
- Debit and Prepaid Card Processing
- Processing Debit and Prepaid Authorizations
- Airline Data Processing
- Japanese Payment Options Processing
- Processing Payments Using Credentials
- Customer-Initiated Transactions with Credentials on File
- Delayed Transaction
- Incremental Transaction
- Merchant-Initiated Incremental Transaction with PAN
- No-Show Transactions
- Reauthorization Transaction
- Merchant-Initiated Reauthorization Transactions with PAN
- Resubmission Transaction
- Merchant-Initiated Resubmission Transaction with PAN
- Installment Payments
- Recurring Payments
- Merchant-Initiated Recurring Payments with PAN
- Unscheduled COF Payments
- Token Management Service Processing
On This Page
Optional Field for Processing an Authorization Using American Express SafeKey
This field is optional in a request for an authorization with American Express SafeKey. The
value for this field is in the response from the payer authentication validate service. When
you request the payer authentication validate and authorization services together, the data
is automatically passed from one service to the other.
- consumerAuthenticationInformation.xid