NOTICE DATE: September 4, 2012 NOTICE TYPE: R-A090412-01 Retail Processing SHORT DESCRIPTION: ERCOT was unable to accept inbound NAESB transactions. INTENDED AUDIENCE: CRs and TDSPs DAY AFFECTED: Sunday, September 2, 2012 from 14:15 through 16:08 LONG DESCRIPTION: During the times specified, ERCOT was unable to accept inbound North American Energy Standards Board (NAESB) transactions because of an issue with a NAESB server. Market Participants and Service Providers who submitted files during this time period would have received a negative acknowledgement. The server issue was resolved and normal processing resumed. 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/>. DH/DG