NOTICE DATE: May 4, 2010 NOTICE TYPE: R-A050410-01 Retail Processing SHORT DESCRIPTION: ERCOT experienced a delay in sending a subset of cancellation and notification transactions on Monday, May 3, 2010. INTENDED AUDIENCE: CRs and TDSPs DAY AFFECTED: May 3, 2010 LONG DESCRIPTION: As a result of one of the NAESB servers not properly restarting after the maintenance outage on Sunday, May 2, 2010, ERCOT experienced a delay in sending 1,274 retail batch transactions on Monday, May 3, 2010. This caused a subset of the cancellation and notification transactions to be out of protocol. A summary of the impacted transactions is outlined below: Tran Type Count 814_06 1149 814_08 14 814_22 111 Total 1274 ADDITIONAL INFORMATION: ERCOT Retail Account Managers will provide affected Market Participant's with a list of impacted transactions when lists are 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/DH