NOTICE DATE: June 18, 2026

NOTICE TYPE: M-B061826-01 Unplanned Outage

SHORT DESCRIPTION: ERCOT has been experiencing ongoing issues which are impacting Market Submissions through API

INTENDED AUDIENCE: All QSEs

DAYS AFFECTED: June 18, 2026, 04:12 AM

LONG DESCRIPTION: ERCOT is actively troubleshooting an ongoing issue which is impacting Day-Ahead and Real-Time Market submissions through API. Market submissions from Market Manager User Interface (UI) from ERCOT MIS portal is working fine. We will provide updates once available.

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at ClientServices@ercot.com.

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