1. Accepted Billing Address Formats
To pass validation, a billing address must include at least one of the following combinations: ✔ AddressLine1, City, and State ✔ AddressLine1 and Postal Code ✔ State and Postal Code ✔ AddressID 📌 One of these formats is required; otherwise, the API will return an error.
  1. Sample API Request with a Billing Address
The following JSON request demonstrates a valid billing address structure: 
{
  "PaymentMethod": {
    "BillingAddress": {
      "AddressLine1": "381 Forest Ave",
      "City": "Laguna Beach",
      "State": "CA",
      "PostalCode": "92651",
      "Country": "USA"
    },
    "BillingFirstName": "John",
    "BillingLastName": "Doe",
    "CreditCard": {
      "PaymentAccountNumber": "4111111111111111",
      "ExpirationDate": "0330",
      "SecurityCode": "737"
    }
  }
}
  1. Handling Validation Errors
If the provided address does not meet the minimum required fields, the API will return an error message like the following: 
{
  "errorMessage": "Neither an Address ID nor a required set of address fields were provided."
}
📌 Ensure that one of the accepted address formats is included in the request to prevent errors.
  1. Additional Notes on Address Formatting
✔ Country codes should follow ISO Alpha-2 or Alpha-3 abbreviations. ✔ For U.S. addresses, the postal code must be exactly 5 characters. ✔ For international addresses, postal codes can be up to 10 characters. ✔ For many countries, the State field is not required. 🔗 Reference: Country Codes for IBAN
  1. Sample Billing Address for the United Kingdom
For countries where the State field is not required, a valid billing address can be structured as follows (UK in this example): 
{
  "BillingAddress": {
    "AddressLine1": "49 Featherstone Street",
    "City": "London",
    "PostalCode": "EC1Y 8SY",
    "Country": "GB"
  }
}
📌 Ensure that the postal code format follows the country-specific rules to avoid validation errors.
  1. Summary of Billing Address Validation in Revolv3
RequirementDetails
Required Fields (One Format Needed)AddressLine1 + City + State OR AddressLine1 + Postal Code OR State + Postal Code OR AddressID
Country FormatMust be in ISO Alpha-2 or Alpha-3 format
US Postal Code5-digit format required (e.g., 92651)
International Postal CodeUp to 10 characters allowed
State RequirementNot required for many countries
PaymentMethod - Creating and Re-using