Every year, the number of China tourists to Vietnam reaches 4 million, nearly one third of the total. However, with the popularity of mobile payment, some problems have gradually emerged. First of all, because tourists pay RMB abroad, which involves foreign exchange, they need to cooperate with authoritative settlement institutions in Vietnam.

However, some local businesses scan the code for convenience, resulting in unauthorized payment of foreign currency and certain tax losses. Vietnam has made up its mind to rectify this phenomenon, so not all mobile payments can be used. As long as the payment code is authorized by the cooperative organization that has settled in Vietnam and paid according to the formal process, it can still be used normally.

On the other hand, the development of mobile payment may have impacted the currency status of the Vietnamese dong. If everyone scans the code, won't anyone use cash? In fact, even if tourists use QR codes, it is only the tip of the iceberg compared with so many locals. Those who should use the Vietnamese dong will continue to use it, but their living habits in other places are different. Then again. Although it is convenient to scan the code for payment, it is not good to tip. Perhaps this is also a reason to vomit.