NOTICE DATE: July 18, 2008 NOTICE TYPE: M-B071808-01 - Outage - Retail CLASSIFICATION: Public SHORT DESCRIPTION: ERCOT's Market Participant Identity Management (MPIM) application was unavailable today, July 18, 2008, from approximately 10:05 AM to 10:45 AM. INTENDED AUDIENCE: All Market Participants DAY AFFECTED: July 18, 2008 from approximately 10:05 AM to 10:45 AM LONG DESCRIPTION: ERCOT's Market Participant Identity Management (MPIM) application was unavailable today, July 18, 2008, from approximately 10:05 AM to 10:45 AM. An error occurred during an approved production migration of another application and caused the MPIM application to become unavailable. The change was rolled back and MPIM is now 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] 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