Project activity is a feature where can track the activity of the project.
There is a way to turn off project activity from being visible to customers. You can just toggle the OFF button on the right side of the activity.
Project activity works smart and auto turn the on/off visible to the customer.
How does this work?
Example: Not visible to customer discussion is created. After that, all project activity logged by this discussion will be marked as not visible to the customer. This logic is applied also to tasks, files, and timesheets.