UserDetailsModel

Customer's street address. Required. 5-60 characters, must include street name.

Customer's city. Required. 3-32 characters.

Customer's email address. Required. Must be a valid email format.

Customer's first name. Required. 2-32 characters, letters only (including dot, whitespace, dash, apostrophe).

Customer's last name. Required. 2-32 characters, letters only (including dot, whitespace, dash, apostrophe).

Two-letter US state code. Required. Must match the state derived from the ZIP code.

5-digit US ZIP code. Required. Must be a valid ZIP code that matches the state.

Optional. Apartment, suite, or unit number. Maximum 4 characters.

Billing street address. Required when isBillingAddressDifferent is true. 5 to 60 characters, must contain a letter, and must not contain an @.

Billing apartment, suite, or unit. Always optional, even when isBillingAddressDifferent is true. Maximum 4 characters.

Billing city. Required when isBillingAddressDifferent is true. 3 to 32 characters.

Cardholder's first name. Required when isBillingAddressDifferent is true. 2 to 32 characters. Letters plus dot, space, dash, and apostrophe only; no digits.

Cardholder's last name. Required when isBillingAddressDifferent is true. 2 to 32 characters. Letters plus dot, space, dash, and apostrophe only; no digits.

Billing state as a two-letter US code. Required when isBillingAddressDifferent is true. Letters only.

Billing US ZIP code. Required when isBillingAddressDifferent is true. Unlike the customer's zip, this is not cross-checked against billingState.

Set to true when the card's billing address differs from the customer's address above. Defaults to false, in which case every billing* field below is ignored and can be omitted.

When true, all of billingFirstName, billingLastName, billingAddress, billingCity, billingState, and billingZip become required. Only billingAddressApartment stays optional.

Customer's phone number. Optional but recommended. 10-digit US phone number.