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Here you can find some useful ideas for your question:
https://fxdreema.com/forum/topic/6796/make-ea-close-all-pending-orders-after-tp-triggered/4
https://fxdreema.com/forum/topic/5678/various-questions-pending-order-loop-delete-all-pending-orders-after-event-use-of-the-on-trade-page-and-check-equity-percentage-or-ratio
https://fxdreema.com/forum/topic/4760/delete-pending-order-when-reached-tp/2
