Carbon Diet Coach was designed to adapt to any type of exercise and activity level over time. You do not need to do anything specific for the app to continue recommending macro targets and adjusting them to reach your goals. As long as the activity level has not changed drastically, it will still keep you on track.
If your activity level changes drastically, it might be helpful to reset your goal with the new activity level. To do this, click on Settings -> Coach Settings -> Goal. This will give you the option to put your new exercise and activity level in and get adjusted macros.