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What is the meaning of the credit transaction initiated by UnionPay Center marked behind the short message notice of Harbin Bank?

1, UnionPay Center: UnionPay Center is the central processing organization of UnionPay network, responsible for handling inter-bank transactions between banks and transmission of various payment information.

2. Credit transaction: Credit transaction refers to a transaction in which a bank card account receives a sum of money. For example, when shopping, the merchant deposits the corresponding amount into the bank card account, which is a credit transaction.