NOTICE DATE: March 18, 2022
NOTICE TYPE: M-A021722-02 Release
SHORT DESCRIPTION: In preparation for End-of-Life (EOL) of Internet Explorer (IE), Market Participants may voluntarily test the Market Management System User Interface (MMSUI) and the Outage Scheduler User Interface (OSUI) applications with Chrome or Edge browsers
INTENDED AUDIENCE: Qualified Scheduling Entities (QSEs) and Transmission Service Providers (TSPs)
EFFECTIVE DATE: March 21, 2022
LONG DESCRIPTION: This notice offers Market Participants the opportunity to voluntarily test the MMSUI and OSUI applications with Chrome or Edge browsers in the Market Operations Test Environment (MOTE) between March 21, 2022 and March 25, 2022.
Microsoft is ending support of all Internet Explorer (IE) browsers in June 2022. ERCOT is in the process of ensuring all Market-facing applications support Chromium browser platforms (Microsoft Edge and Google Chrome). In accordance with this plan, ERCOT will release the Chromium-based version of MMSUI (Market Management System User Interface) and OSUI (Outage Scheduler User Interface) on April 07, 2022. After April 07, 2022, Market Participants will only be able to access the MMSUI and OSUI applications using Microsoft Edge and Google Chrome browsers. It should be noted that users will be able to open only one MMSUI or OSUI browser session at a time in Google Chrome or Edge.
ACTION REQUIRED: Between March 21, 2022 and March 25, 2022, Market Participants may voluntarily test the MMSUI application in the MOTE environment with Chrome or Edge browsers.
ADDITIONAL INFORMATION: ERCOT designates the supported browser for each of its applications on the Applications page of ERCOT.com. Click the purple Help button at the bottom right of the page to view this information.
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 email at [log in to unmask].
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