NOTICE DATE: July 23, 2012 NOTICE TYPE: R-A071912-02 FINAL – Retail Processing – 867_03 (05) Transactions SHORT DESCRIPTION: A resolution has been implemented for the processing issue reported on July 19, 2012. INTENDED AUDIENCE: CRs and TDSPs DAYS AFFECTED: June 10, 2012 to July 23, 2012 LONG DESCRIPTION: A resolution has been implemented for the processing issue reported on July 19, 2012. The 867_03 (05) replacement transactions are being correctly placed in the next day folders as expected. This issue impacted NIDR 867_03 transactions only. From June 10, 2012 to July 23, 2012, a processing issue occurred when replacement 867_03 (05) transactions were submitted on the same day and for the same timeframe as 867_03 (01) cancels, causing larger than normal amounts of 26, 27 and 05 errors on 867_03 activity reports. The 867_03 (05) transactions were being placed in both the current and next day processing streams which results in the cancel and replacement transactions being ‘canceled out’ and not processed. This caused the 26 (01 transaction not processed - Matching 00 in same load attempt) and 27 (00 transaction not processed - Matching 01 in same load attempt) errors. When the replacement transaction processed in a subsequent batch run, the data in the settlement system was still present and the 867_03 (05) transaction failed (transaction would create an overlap). Market participants may again submit cancels and replacements on the same day as prior to TX SET 4.0 implementation. 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. JR/DH From: ERCOT Client Services Sent: Thursday, July 19, 2012 3:51 PM To: [log in to unmask]; [log in to unmask] Cc: 1 ERCOT Client Service Reps; RMS and others; 1 Standard Electronic Transactions; [log in to unmask] Subject: RA-071912-01 – Retail Processing – 867_03 (05) Transactions NOTICE DATE: July 19, 2012 NOTICE TYPE: RA-071912-01 – Retail Processing – 867_03 (05) Transactions SHORT DESCRIPTION: A processing issue occurs when replacement 867_03 (05) transactions are submitted on the same day and same timeframe as 867_03 (01) cancels, causing larger than normal amounts of 26, 27 and 05 errors on 867_03 activity reports. INTENDED AUDIENCE: CRs and TDSPs DAY AFFECTED: June 10, 2012 to present LONG DESCRIPTION: A processing issue occurs when replacement 867_03 (05) transactions are submitted on the same day and for the same timeframe as 867_03 (01) cancels, causing larger than normal amounts of 26, 27 and 05 errors on 867_03 activity reports. The 867_03 (05) transactions are being placed in both the current and next day processing streams which results in the cancel and replacement transactions being ‘canceled out’ and not processed. This causes the 26 (01 transaction not processed. Matching 00 in same load attempt) and 27 (00 transaction not processed. Matching 01 in same load attempt) errors. When the replacement transaction processes in a subsequent batch run, the data in the settlement system is still present and the 867_03 (05) transaction fails for a 05 (transaction will create an overlap). ERCOT has completed an initial investigation, identified the problem, and is currently working toward a resolution. A mitigation strategy for this issue in the interim is to send 867_03 (01) cancel and subsequent 867_03 (05) replacement meter reads one day apart instead of submitting them on the same day. ADDITIONAL INFORMATION: Additional details will be provided as they become 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 JR/DH