I just bought a machine secondhand after typing in a cereal everything except the machine software itself was added access
If you have issues with second hand licences, transfers, etc…please reach out to our registration support: https://bit.ly/n1acc
Which Maschine? Did you buy it from an individual (private sale) or a store?
The previous owner needs to transfer the license to you. If this hasn't been done (or can't be) then you'll need to buy the software.