Glossary

Terminology / Abbreviation	Description
Merchant	That is, the merchant is the seller in the payment scenario, and the payment system helps the seller realize the collection business
Payer	That is, the buyer, pays the seller through the payment page in the payment scenario
Payment order	Created by the seller calling the creation order interface of the payment gateway through signature and used for collection
Transaction	When the payer pays the seller through the payment page, a certain payment behavior is a transaction. The same payment order may generate multiple payment transactions, but only one will be successful. When a new payment transaction is initiated, the old payment Transaction automatically voided
Login account	This is the user ID, in the form of U012030 (starting with a capital letter U followed by 6 digits), keep it properly and you will need it when logging in
Login password	User login password, a string of 8 to 32 characters, must contain both numbers and letters
Two-step verification string	Use OTP for secondary verification when performing important operations to ensure account security
client Merchant client	Contains id, key and secret used when calculating signatures