Minimum to open a passport: customer, address, utility, kW, contract terms. Everything else can be filled as the project progresses. Same validation as the import API (DATA-DICTIONARY §7–§8).

Paste a JSON array of canonical records (DATA-DICTIONARY §7.2) or CSV with the Master Data Tape headers. Posts to /api/import/systems; HARD_BLOCK rows are rejected, OUT_OF_BAND rows import with a flag.