What legal aspects should I consider regarding the Nachweisgesetz and essential contract terms in the funnel?

Germany should mark work location, compensation, working time, start date, fixed-term status, and probation period as central contract parameters in the funnel. Recommendation: maintain offer and contract information in the employer backend with the same structure as in the frontend. In practice: mandatory fields for work location, hours, compensation, start date, and fixed-term status. Limitation: not every detail condition is final in early process phases. (Sources: Destatis Labour Market, BA Beschaeftigung Statistik)