All Cash Register systems have to have tamper protection in form of a digital signature in accordance with cash register requirement, which ensures that documents cannot be changed afterwards. For this purpose, a machine-readable code (QR-Code) must be printed on each cash receipt.
For this, you only need to purchase a signature creation unit from a certification service provider (A-Trust, Globaltrust or Prime-Sign), register it with FinanzOnline and you can already use your QR-Code.
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