Why can wechat only be paid with small change?

Nowadays, mobile payment is very common, because it is very convenient to use and you don't have to bring cash when you go out. Now whenever we pay, we will see a slogan similar to "Suggest WeChat payment" at the cashier. Tools/raw materials: demonstration equipment: Huawei nova 4/emui10.0, demonstration application: wechat V 7.0. 12, applicable system10.

1. First of all, we need to open WeChat on our mobile phone and click "I" in the lower right corner of WeChat homepage to enter our personal page of WeChat.

2. Click Pay below our WeChat avatar to enter our payment management page, and then click Receive and Pay in the upper left corner of this page.

3. Show the QR code and barcode to the cashier, and let the cashier scan our QR code with a scanning gun or camera to complete the transaction.

4. If we have personal payment requirements, we can choose to change the priority payment method by clicking Change below the QR code.