[done] Initial Ticket #16633 filed.
Date: exact filing date not pinned in current WORK_LOG references; ticket already active by 2026-04-08.
[done] Japan 窓口 contacted after overseas support stopped at "final notice".
Date: 2026-04-08 after Emilee Saxon final notice at 14:32 CEST.
[done] Q1 self-resolved.
Date: 2026-04-08. Understanding fixed as "multileg quote bid/ask is returned as Indicative".
[done] Q2 self-resolved.
Date: 2026-04-08. Understanding fixed as "OpenAPI current behavior / constraints confirmed".
[pending] Q3 (COB routing) explicit answer from Saxo Japan.
Date opened: 2026-04-08. Current state on 2026-04-12: unanswered.
[in progress] IBKR parity data collection for supporting evidence.
Date started: 2026-04-12. Status: IBeam gateway and IBKR underlying quote collector are already running.
[pending] Follow-up email if Q3 remains unanswered 7 days after last Japan contact.
Due date: 2026-04-15 if 2026-04-08 is treated as the latest confirmed outbound contact.
[pending] Attach supporting evidence bundle on follow-up.
Contents: Saxo combo bid observations, CR deviation analysis, and IBKR parity data if available.
[pending] Final escalation to compliance / higher support channel if Q3 remains unanswered 14 days after last Japan contact.
Due date: 2026-04-22 if 2026-04-08 remains the latest confirmed contact.
[pending] Record every reply, due date shift, and attachment path in AEGIS/WORK_LOG.md immediately after each contact.