Short answer

You can delete only active Good Till Triggered (GTT) orders. You cannot delete triggered GTT orders. To delete a GTT order, follow these steps:

Arrow app

Tap on Orders.

Tap on GTT.

Tap on the instrument.

Tap on Delete and confirm.

Arrow web

Log in to Arrow.

Click on Orders.

Click on GTT.

Click on Options and then on Delete.

Click on Delete.