| SDAC - Maximum Price Threshold Increase | SEMOpx |  | Trading day 11/05/22 | 12/04/2022 09:24 | 03/05/2022 09:22 | Closed | Approved | 
      
                                                                      | ECC Clearing Circular No. 14/2022: Increase of Price Limit on MRC Day-Ahead Auctions | SEMOpx |  |  | 11/04/2022 16:51 | 11/04/2022 15:54 | Closed | Approved | 
      
                                                                      | SEMOpx ETS Breaking Messages Change 01 April 2022 | SEMOpx |  |  | 01/04/2022 13:06 | 01/04/2022 12:14 | Closed | Approved | 
      
                                                                      | UPDATE: SEMOpx Intraday: M7 Maintenance Tuesday, 12th April 2022 | SEMOpx |  | 12/04/22 | 01/04/2022 10:16 | 06/04/2022 11:15 | Closed | Approved | 
      
                                                                      | ECC Clearing-Circular No. 11/2022 regarding Margin Adjustments. | SEMOpx |  |  | 31/03/2022 11:10 | 31/03/2022 10:10 | Closed | Approved | 
      
                                                                      | SEMOpx Auction: ETS Maintenance Window Tuesday, 12th April 2022 | SEMOpx |  | 12/04/22 18:40 to 21:30 BST | 29/03/2022 09:38 | 29/03/2022 08:40 | Closed | Approved | 
      
                                                                      | SEMOpx M7 - Contracts Info display issue | SEMOpx |  |  | 28/03/2022 14:20 | 28/03/2022 13:27 | Closed | Approved | 
      
                                                                      | ECC Clearing Circular No.11 /2022: Spot Margin Holiday Adjustment | SEMOpx |  |  | 28/03/2022 12:27 | 31/03/2022 10:08 | Closed | Approved | 
      
                                                                      | Daylight Saving Time Change Reminder 27th March 2022 | SEMOpx |  | 27/03/22 | 24/03/2022 11:34 | 24/03/2022 11:35 | Closed | Approved | 
      
                                                                      | SEMOpx M7 API Load Management User Guide, Supporting Docs and Sample File | SEMOpx |  |  | 23/03/2022 14:09 | 23/03/2022 14:10 | Closed | Approved | 
      
                                                                      | SEMOpx Auction: Production Ad-Hoc ETS Trading System Maintenance today | SEMOpx |  | 16/03/22 18:40-19:30 GMT | 16/03/2022 13:53 | 16/03/2022 13:58 | Closed | Approved | 
      
                                                                      | EWIC NTC Reductions | SEMOpx | N/A | 07/03/2022 - 10/03/2022 | 04/03/2022 17:58 | 04/03/2022 18:02 | Closed | Approved | 
      
                                                                      | SEMOpx Daylight Savings Short Day Testing March 2022 | SEMOpx |  | 27/03/22 | 25/02/2022 10:54 | 25/02/2022 10:54 | Closed | Approved | 
      
                                                                      | SEMOpx Auction: ETS Maintenance Window Tuesday, 8th March 2022 | SEMOpx |  | 08/03/22 18:40 to 20:00 GMT | 22/02/2022 10:45 | 22/02/2022 10:46 | Closed | Approved | 
      
                                                                      | GM7-1 | New Ex Officio investigation M7 market message | SEMOpx |  |  | 16/02/2022 11:34 | 16/02/2022 11:34 | Closed | Approved | 
      
                                                                      | ETS SIMU 1 and 2 New Connection Settings - 14 February 2022 | SEMOpx |  |  | 14/02/2022 15:18 | 14/02/2022 15:40 | Closed | Approved | 
      
                                                                      | SEMOpx monthly report for January 2022 | SEMOpx |  |  | 04/02/2022 16:39 | 04/02/2022 16:42 | Closed | Approved | 
      
                                                                      | Market data publication issue | SEMOpx |  | 02/02/2022 | 03/02/2022 12:58 | 04/02/2022 09:23 | Closed | Approved | 
      
                                                                      | Expiring M7 API Certificate Advanced Simulation (ASIM) | SEMOpx |  |  | 28/01/2022 11:49 | 28/01/2022 11:53 | Closed | Approved | 
      
                                                                      | ECC Clearing Circular No. 3/2022:EUA Collateral Improvements | SEMOpx |  |  | 28/01/2022 11:00 | 28/01/2022 11:19 | Closed | Approved |