OptionalbirthDate of birth
OptionaldeliveryDelivery information
Buyer's email address
OptionalextCustomer ID in merchant system
OptionalfirstBuyer's first name
OptionallanguageLanguage code (e.g., 'pl', 'en')
OptionallastBuyer's last name
OptionalninNational Identification Number
OptionalphoneBuyer's telephone number
Buyer
Export
Buyer