Enhancements in Trading System APIs in Equity, Equity Derivatives, Currency Derivatives, Commodity Derivatives & EGR segments (Mandatory Release) – Update

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NOTICE Notice No. 20260529-13 Notice Date 29 May 2026 Category Trading Segment General Department Trading Development Subject Enhancements in Trading System APIs in Equity, Equity Derivatives, Currency Derivatives, Commodity Derivatives & EGR segments (Mandatory Release) – Update Attachments No Attachment In continuation circular no. 20260515-36 dated May 15, 2026 regarding following Enhancements in Trading System APIs in Equity, Equity Derivatives, Currency Derivatives & Commodity Derivatives segments • New field – Algo ID added to order & quote mass cancellation messages • New Error code related to debarred client • Revised identification for Location ID Kindly not following important points – • Changes in the Test (simulation) environment are available from Tuesday, May 26, 2026 in Equity Derivatives, Currency Derivatives, Commodity Derivatives and in Equity segment changes shall be made available from Wednesday, June 3, 2026. • Additionally, similar ETI API changes (v1.6.14) as specified in circular no. 20260515-36 shall be applicable in EGR segment as well and same has been made available for testing from Tuesday, May 26, 2026 in test (simulation) environment. The above-mentioned enhancements shall be made available for live trading as follows – • Changes in Equity Derivatives, Currency Derivatives, Commodity Derivatives & EGR segments shall be made live with effect from Monday, June 29, 2026 (mock trading on Saturday, June 27, 2026). • Changes in In Equity segment, instead of Monday, June 22, 2026, changes shall be made live with effect from Monday, July 06, 2026 (mock trading on Saturday, July 04, 2026) All third-party trading application vendors and members having in-house developed trading application are requested to take note of the API changes & ensure necessary system development in their trading application. For any clarifications or technical assistance, please contact the BSE Tech Team at email - bse.tech@bseindia.com or telephone – 022 – 2272 8053. For & on behalf of BSE Ltd, Nawaid Pathan Amith Iyer Vice President – Information Technology DVP – Trading Development May 29, 2026