The Bombay Stock Exchange (BSE) on May 15, 2026, notified regarding the Enhancements in Trading System APIs in Equity, Equity Derivatives, Currency Derivatives & Commodity Derivatives segments – Mandatory Release.
The Exchange has proposed enhancements to its trading system, requiring updates to the ETI APIs. Accordingly, a new ETI API version 1.6.14 has been introduced. Key changes include the addition of an “Algo ID” field in order and quote mass cancellation messages, introduction of a new error code for debarred clients, and revised identification for Location ID.
To support these updates, the new API version has been made available on the Exchange website, and testing will be enabled in the simulation environment from May 26, 2026. Trading members and third-party application vendors are advised to review the changes and make necessary system modifications to ensure compatibility.
The rollout for live trading will be implemented in phases. For the Equity segment, the changes will go live from June 22, 2026, with mock trading scheduled on June 20, 2026. For Equity Derivatives, Currency Derivatives, and Commodity Derivatives segments, the implementation will take effect from June 29, 2026, with mock trading on June 27, 2026.
Members are expected to complete testing and system readiness within the specified timelines to ensure a smooth transition to the updated API version without disruption to trading activities.
[Notification No. 20260515-36]
