MasterCard Message Reason Codes—Dual Message System Transactions
3.5 Chip Liability Shifts
To remedy a chargeback initiated under message reason code 4870 when the
chip liability shift does not apply or to remedy a chargeback initiated under
message reason code 4871 when the chip/PIN liability shift does not apply, the
acquirer must use message reason code 2713 (Invalid Chargeback).
Any country or region that participates in the Global Chip Liability Shift Program
for interregional transactions must implement a domestic or intraregional chip
liability shift using the same reason codes as the Global Chip Liability Shift
Program before they can participate in the program