All Feiyr.com services can be used without any restrictions, also without a label code.

Please note, however, that the Label Code is an important factor for the distribution of music in Germany.
It is issued by the Gesellschaft zur Verwertung von Leistungsschutzrechten (GVL) and is a prerequisite for airplay on German radio stations and sampling campaigns for radio.
In order to obtain a label code, sound recording users, such as music producers or labels, must conclude a performance rights contract with the GVL.
This can be done online on the official GVL website: GVL Administration Agreement
If your label has a label code, you can always enter it in your Feiyr account under "Label". This way it will be automatically transmitted when you order a sampling, for example.