NOTICE DATE: April 16, 2009 NOTICE TYPE: M-A041609-01 INITIAL: Release - Retail SHORT DESCRIPTION: ERCOT has an on-cycle Retail Release planned for 12:00 PM Saturday, May 16, 2009 through 12:00 AM Monday, May 18, 2009. INTENDED AUDIENCE: All Market Participants DAY AFFECTED: 12:00 PM Saturday, May 16, 2009 through 12:00 AM Monday, May 18, 2009 LONG DESCRIPTION: ERCOT has an on-cycle Retail Release scheduled from 12:00 PM Saturday, May 16, 2009 through 12:00 AM Monday, May 18, 2009 to implement PR 80040_01. PR 80040_01 implements integration best practices recommended by Oracle in an effort to resolve internal Customer Registration Database issues. Implementation of PR 80040_01 will also enhance the stability between Enterprise Application Integration (EAI) servers and the Customer Registration Database as well as improve EAI server notifications and alerts. ADDITIONAL INFORMATION: During the outage the following functions will be affected: * Market Participants utilizing NAESB to send/receive transactions to/from ERCOT will NOT be able to send/receive transactions to/from ERCOT during the outage. This includes all retail transactions. * 867 transactions will NOT be forwarded during the outage. * 997 Functional Acknowledgements will NOT be sent during the outage. * Components of the TML and Commercial API will NOT be available including: * Find ESI ID * Find Transaction * Submit Transactions * USA Functionalities * Report Explorer, including * Reports * Extracts * Invoices * Settlement Statements * Extract Scheduler * Web Services Data Requests * ERCOT Internet Services will NOT be available, including but not limited to: * ERCOT.com - www.ercot.com<http://www.ercot.com/> * MarkeTrak - https://marketrak.ercot.com:8443/tmtrack.dll? * TCR - https://tcr.ercot.com<https://tcr.ercot.com/> * Texas Renewables - www.texasrenewables.com<http://www.texasrenewables.com/> MOS, Scheduling API, MOSTML, MOSPUBLIC, and Outage Scheduler will not be affected as there will be a DNS failover from Taylor to Austin. 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/DP