NOTICE DATE: May 25, 2010 NOTICE TYPE: R-A052510-01 INITIAL NOTICE - Retail Processing SHORT DESCRIPTION: This morning, ERCOT experienced retail transaction processing issues impacting ERCOT generated cancellation and notification transactions and 814_20s. INTENDED AUDIENCE: CRs and TDSPs DAY AFFECTED: May 25, 2010 from 06:00 to 08:59 LONG DESCRIPTION: ERCOT experienced retail transaction processing issues resulting in a delay in sending ERCOT generated cancellation and notification transactions and 814_20s. At this time, all ERCOT Retail Transaction processing has been restored. ADDITIONAL INFORMATION: A root cause is being investigated. Additional information will be provided as it becomes 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 e-mail at [log in to unmask]<mailto:[log in to unmask]>. If you are receiving e-mail from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com<http://lists.ercot.com/>. JR/DP 145219