I am not sure if it is still handled that way, but in my experience these are not supposed to be used to create new receipts, but to replace receipts that were lost or document things that occured but couldn't be put on receipts for whatever reason.

While it might be possible to use them this way they might be scrutinized and the additional work of justifying them might not be worth using a service that doesn't provide receipts.

Also, there is this section:

> Soll die Ausgabe vom Finanzamt anerkannt werden, muss dies ein Ausnahmefall bleiben.

Meaning, roughly "Even if accepted by the authorities, it is to be treated as an exception"

So i assume that they would not be a fan of you trying to use this too liberally within your accounting.