People ask this question usually that if they can leave a note on the door for UPS. In some situations, people are not able to be present at home at the time of collection of the mail because of some other important work. In such situations, a note comes to rescue.
You can check the scheduled date of delivery of your package by logging in to your UPS account. If the scheduled delivery date clashes with the date when you won’t be available at home then you can do one thing. Take a piece of paper and tape, make a handwritten note to UPS regarding leave your package outside your home and paste that on the door.
The delivery man will keep the package at the safe place.