There is a possibility that you might forget to mark a habit or task as “done” or “skipped” and thus distort your statistics. In order to prevent this from happening, you can change the status of the habits and tasks scheduled for all previous days.
Please, bear in mind that you can mark a habit either as "done" or "skipped" only for the days when it already existed. In other words, you can not add statistics gathered before you started using Productive.
However, you can mark the habits for all previous days after the habit was created.
For this, open the main screen and tap on the menu in the top left corner and select the Stats option.
On the Your Stats screen, tap any date on the calendar to view past tasks. You can then swipe left or right on a habit to mark it as Skipped or Done, even if you forgot to update it earlier.
Once marked, close and reopen the Statistics screen—the selected day will now be shown as successful, and your Total Perfect Days count will increase accordingly