Si he olvidado imputar una tarea, ¿puedo ponerla a posteriori?

Plans: Time, Advanced, HR Starter, HR Professional and HR Enterprise.

Yes, we all forget, so don't worry. You can do it from the app or from the web dashboard without any problem. From the dashboard, go to "Tasks" and then click on "Add". If it's from the app, click on "My Tasks" and then on the icon on the top right.