Why I am getting error "Reverse Trade Order Deleted" in my trade book ?

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The error message "Reverse Trade Order Deleted" (or similar messages like "Cancel Order - Reverse Trade Prevention Check") appears in your trade book because the exchange's Reversal Trade Prevention Check (RTPC) system has automatically cancelled your order to prevent a prohibited trading pattern.

 

The trading system detects when you are trying to "reverse" a trade that has already occurred between the same parties on the same day. Specifically:

• The Scenario: You already executed a trade (e.g., Client A bought from Client B).
• The Reversal: You later placed an order that would have matched back with that same party for the same contract (e.g., Client A now tries to sell back to Client B).
• The Prevention: To avoid non-genuine transactions or artificial volumes, the system identifies this "second leg" of the trade and automatically deletes the incoming order.

Pls see the exchange circular on the subject