The user and 'userData' types contain the data of a customer/user.

Example:

<user>
  <id>KalixaTestUser_3</id>
  <username>johndoe</username>
  <firstname>John</firstname>
  <lastname >Doe</lastname>
  <currencyCode>EUR</currencyCode>
  <languageCode>EN</languageCode>
  <email>john.doe@yahoo.com</email>
  <address>
    <street>Lombardia</street>
    <houseNumber>88</houseNumber>
    <postalCode>9999</postalCode>
    <countryCode2>AT</countryCode2>
    <telephoneNumber>00437778889999</telephoneNumber>
  </address>
  <dateOfBirth>1995-10-10T00:00:00</dateOfBirth>
  <gender>Female</gender>
  <isVIPUser>true</isVIPUser>
  <registrationDateAtMerchant>2014-08-01</registrationDateAtMerchant>
  <lastActivityDateAtMerchant>2018-12-22</lastActivityDateAtMerchant>	
</user>

Fields:

field (type, required)	description
id (stringID, required)	Customer ID Not applicable for userData
username (username)	User name of the customer
firstname (personName)	Customer´s first name
lastname (personName)	Customer´s last name
currencyCode (threeLetterCode)	Main transaction currency of the customer
languageCode (twoLetterCode)	Main language of the customer
email (emailAddress)	eMail address of the customer Used for payment methods: Multibanco Deposit
address (address)	The address of the customer
dateOfBirth (dateTime)	The date of birth of the customer
gender (gender)	The gender of the customer, with possible values "Male" or "Female"
identificationNumber (secureString)	The number of the ID / Passport of the customer
identificationNumberType (secureString)	The type of ID (e.g. "Passport")
drivingLicenseNumber (secureString)	The number of the driving license of the customer
drivingLicenseIssuingState (secureString)	The issuing state of the driving license
isVIPUser (boolean)	The information if a user is a VIP user ("true"). If not provided the default is "false". Can be used as decision parameter for Smart 3D Secure
registrationDateAtMerchant (date)	The date when the user has been registered in the merchant portal. Can be used as decision parameter for Smart 3D Secure
lastActivityDateAtMerchant (date)	The date when the user has made his last activity in the merchant portal. Can be used as decision parameter for Smart 3D Secure

XML Schema:

<complexType name="user">
  <sequence>
    <element minOccurs="1" maxOccurs="1" name="id" type="stringID"/>
    <element minOccurs="0" maxOccurs="1" name="username" type="username" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="firstname" type="personName" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="lastname" type="personName" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="currencyCode" type="threeLetterCode" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="languageCode" type="twoLetterCode" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="email" type="emailAddress" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="address" type="address" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="dateOfBirth" type="s:dateTime" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="gender" type="gender" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="identificationNumber" type="secureString"/>
    <element minOccurs="0" maxOccurs="1" name="identificationNumberType" type="secureString" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="drivingLicenseNumber" type="secureString" nillable="true"/>
    <element minOccurs="0" maxOccurs="1" name="drivingLicenseIssuingState" type="secureString" nillable="true"/>
  </sequence>
</complexType>