STEP 1: Clear the incorrect trailer information, and add the new one. To do so, click the pen icon of the trailer and search for the trailer in the database by clicking the pen and paper icon and selecting the replacement trailer. Tick the circle to select and click the 'Insert and Populate' button. Or, you may simply change the trailer by adjusting the necessary fields manually. Once done, hit .

STEP 4: For cargo-loaded trips, once you are directed to the Add Cargos tab, you may then submit the whole manifest by ticking the box of the cargo, selecting Modify under the Response Message, and then clicking the Submit button.