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Optional Fields for Device Data Collection {#reference_hkg_vtp_mrb}
===================================================================

These fields are optional for setting up a Payer Authentication transaction. Under certain circumstances, a field might appear as both an optional field and a required field.

clientReferenceInformation.code
:

orderInformation.billTo.address1
:

orderInformation.billTo.administrativeArea
:

orderInformation.billTo.country
:

orderInformation.billTo.email
:

orderInformation.billTo.firstName
:

orderInformation.billTo.lastName
:

orderInformation.billTo.locality
:

orderInformation.billTo.postalCode
:  
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