How do I add activity?

You can add activity in Lark with two different ways.

The first way to do so is by tapping on the "+" symbol at the bottom of the screen and then tapping “Add data”.

Another way you can add activity is by tapping on the profile icon at the upper left side (or upper right side in Android) and then go to the activity tab. You will then see a "+" symbol you can tap on to log your activity, adding the type and duration.