What does the error "RMS:Blocked for Z bse_cm MIS broker- ZERODHA block type: ALL" mean?

RMS:Blocked for Z bse_cm MIS broker- ZERODHA block type: ALL

MIS orders aren’t allowed on Z group stocks as they are under surveillance by the BSE, due to which intraday trades are risky.

Refer BSE to learn more about Z group stocks.

If an MIS order is placed in such stocks, the order will be rejected and the above error will be displayed.

One can check the Margin Calculator to see the list of stocks on which MIS is allowed.