2.ICP filing: ICP filing is carried out on the company website. This should not be a problem. After the above two items are passed, the bank will basically seal the agreement with the company, which is also a contract, which means it has taken effect.
3. After the contract is signed and sealed, the interface documents will basically be distributed to the merchants. Interface files are available in many languages, such as asp, java,. net, etc. According to the language requirements of your website.
4. After the test is opened, you can find the relevant interface developers, integrate the interfaces, and then you can trade on the company's website.
Extended data abnormal response description
1. Unable to return newspaper style:
Key fields such as version number, transaction type, sub-category, signature method and signature value were not uploaded, and "Invalid Request" was returned; An error occurred while verifying the transaction type and request address, and an "invalid request URI" was returned.
2. Return all request messages with response code and response description (including response code: 0 1, 02,03, 10,1,32):
The signature could not be verified;
Message format error (including missing required fields, undefined fields for sending UnionPay messages, illegal format of message fields, and out-of-range transaction time);
Signature failed; Timeouts and other system anomalies.
China unionpay-online gateway payment