- Grundlagen
 - Kunden
 - Abonnements
- subscription.get
 - subscription.create
 - subscription.update
 - subscription.changearticle
 - subscription.setaddon
 - subscription.setusagedata
 - subscription.getusagedata
 - subscription.deleteusagedata
 - subscription.reactivate
 - subscription.cancel
 - subscription.getupcomingamount
 - subscription.postpone
 - subscription.renew
 - subscription.createsecurelink
 - subscription.changequantity
 
 - Ausgangsrechnungen
 - Lieferungen
 - Produkte
 - Gutscheine
 - Vorlagen
 - Webhooks