It says that the transaction amount exceeds the limit. The amount of a single transfer, or the total transaction amount of the day exceeds the bank limit. Try again the next day. Or use the bank's mobile banking directly, and try it with Youdun. The non-contact "flash payment" terminal mainly covers daily small fast payment merchants, including supermarkets. It may also be that the other product or store does not support flash payment, or no flash payment equipment is added.

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Well-known convenience stores, fast food restaurants, large supermarkets, some cinemas and some entertainment and catering giant stores in first-tier cities in China have the qualifications and hardware facilities to use the flash payment function.

Products that support flash payment function include not only IC bank cards of major banks, but also some mobile clients that have reached cooperation agreements with UnionPay, such as smart phones.

Flash payment products provide credit card repayment, convenient payment, online shopping and other services, and can be "paid at one time" on more than 900,000 terminals supporting contactless payment in China. With the establishment of near-field payment service business circle in 50 cities 100, UnionPay flash payment will become more convenient and relaxed.

There are Samsung GALAXYS3, S4 and S5, HTC Desire C, XC and X 16G, and some domestic mobile phones with UnionPay certification, but they have not yet started to circulate in the market.

Flash payment-Baidu encyclopedia