Please, do I have to bring my ID card? Can an electronic payment code be used instead?

You may have to carry your ID when entering certain places, such as airports, train stations, banks, etc. Electronic payment codes themselves are generally not a substitute for identity documents, but in some cases, such as using the mobile phone ID verification function, they may be able to replace traditional identity documents for identity verification. Whether an electronic payment code can be used instead of an ID card depends on the regulations of the venue.