ECSHOP itself already has many third-party payment interfaces.
Websites such as JD.com are able to implement installments because they have reached cooperation with banks. After JD.com generates an installment order, it will directly transmit the installment data to the bank and the bank will accept it. It should be different from third-party payment like Alipay.
Technically speaking, there is definitely no problem. It is estimated that we need to cooperate with the bank first to be able to carry out installment business.