NOTICE DATE: May 25, 2022

NOTICE TYPE: R-A050522-03 Retail

SHORT DESCRIPTION: Reminder - Retail Release - June 2022

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: MarkeTrak Issue Resolution Application: June 4, 2022 14:00 - June 5, 2022 23:59; Additional ERCOT Systems (see below): June 4, 2022 19:00 - June 5, 2022 23:59

LONG DESCRIPTION: ERCOT Project PR376_01 (MarkeTrak User Interface Refresh) will be migrated to the ERCOT production environment upon notice of outage completion.

Market Notice  R-A050522-02 Retail  ERCOT has determined that it will not be necessary to impact Retail Transaction Processing systems from 14:00 - 19:00 on June 4, 2022.  This will mitigate manual workarounds noted by Market Participants during Retail Business Hours.  Retail processing systems (below) will be unavailable from June 4, 2022 19:00 - June 5, 2022 23:59 or until notice of outage completion.

ADDITIONAL INFORMATION: ERCOT systems will experience service interruptions during the implementation period. The impacts include, but are not limited to:

June 4, 14:00 - June 5, 2022 23:59

June 4, 19:00 - June 5, 2022 23:59

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 [log in to unmask].

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