NOTICE DATE: July 26, 2021

NOTICE TYPE: R-A072621-01 Retail Processing

SHORT DESCRIPTION: ERCOT is experiencing processing issues with TexasSET transactions which will require a brief outage to correct

INTENDED AUDIENCE: LSEs, TDSPs

DAYS AFFECTED: July 26, 2021 10:30am - Ongoing

LONG DESCRIPTION: An internal system issue has caused a significant subset of TexasSET 814 and 867 Transactions to fail sending outbound from ERCOT.  The issue has been identified and will require a brief outage.  The resultant backlog will be reviewed and cleared by Retail Operations.  MarkeTrak will be utilized if necessary.

ACTION REQUIRED: Following completion of the processing outage Market Participants are encouraged to compare expected Texas SET receipts against ERCOT's Market Information System.

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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mm