By QR code
Gulsy Business Application. There are three ways of verifying the code of the user in the Gulsy Business application: by scanning the QR code, by checking the Gulsy ID of the customer, by checking the discount code.
If the customer shows the QR code, then it is necessary to press the “QR” button in the home page of the application. The “QR” code will be scanned and you will be redirected to the authentication screen.