1. When corporate actions such as bonuses or splits happen, does the instrument token for an option contract change? Eg: M&M went ex-bonus on 21st December. The 1000CE became a 500CE. Is the instrument token still the same?
2. If the token is different, is there any mapping between the old and new symbol?
3. Are the entry prices for the user's positions adjusted automatically?
When a corporate action happens, instrument token may change or may not change.
We don't have mappings for old and new instrument tokens.
Yes, a position will be adjusted automatically.