Tenant Admin → Custom Fields. Fields are defined per record type — candidates, jobs, companies — and appear on the records alongside the built-in details.
The useful test: will someone filter or report by it? Notice period (“kündigungsfrist”) earns its place because “available within 3 months” is a real search. A free-text “misc” field doesn’t — that’s what Notes are for.Common DACH agency fields: notice period, target salary vs current, willingness to relocate, driving licence class, language levels beyond German/English, works-council experience.
Fields you add become part of the completeness picture in Tenant Admin → Data Quality — add only what your team will actually fill, or the dashboard turns permanently red.
Define custom fields before a CSV migration, so the columns in your spreadsheet have somewhere to land.