You can execute orders on your MT4 mobile application by following the steps below:
- Login to your trading account on the mobile application and open the quotes tab to view all symbols.
- Click on the instrument you wish to trade on,
- Click on the trade option, and the "Open new order" window will appear:
- Choose your preferred parameters for your order and click on either "Sell by Market" or "Buy by Market".
- A confirmation of your executed order along with the order ID will appear.
Learn more about trading on MT4 mobile here.