The platform or partner fee, commission, or brokerage fee that is associated with the transaction. Not a separate or isolated transaction leg from the external perspective. The platform fee is limited in scope and is always associated with the original payment for the purchase unit.
amountobject<money>Requiredcurrency_codestring<currency_code>RequiredvaluestringRequiredpayeeobject<payee_base>Optionalemail_addressstring<email>OptionalNote: Up to 64 characters are allowed before and 255 characters are allowed after the@sign. However, the generally accepted maximum length for an email address is 254 characters. The pattern verifies that an unquoted@sign exists.
merchant_idstring<account_id-2>Optional