Phase 1 shadow · synthetic · independent
· SAWEM Phase 1 Trading Simulator — explainer-grade, not an MMS.
· Built from the publicly available Trading Rules; Round 2 not yet gazetted
Trading day 2026-05-29virtual hour 00Auction state: ACCEPTINGgate close in 18h:00mDAM clear →IDM re-clear →Balancing →Settlement
The Phase-1 trader exclusion is enforced server-side at /api/offers.
Click "Try" below to see the rejection payload exactly as a real client would.
Toggle the claimed role to demonstrate the role-mismatch audit field — even when
the client lies about being a large_customer, the server resolves the role
from party_id and still rejects.