Community subscription engine: recurring plans, MRR/ARR, upgrades, proration, German invoicing
Track software licences, seats/Nutzerzahl compliance, renewals and cost allocation per cost centre (Kostenstelle).
German contract register with notice periods, auto-renewal tracking and the Fair-Verbrauchervertraege one-month cancellation rule (Section 309 BGB).
German recurring maintenance contracts (Wartungsvertraege): schedule service visits, generate recurring draft invoices and bill extra materials/labour.