Through this policy, we can inform our staff of how many vacation days they have.
We click on Settings⚙️ > Vacation Policies.
On the new screen, we select the Add option to create a new policy. 
We give it a name so that it can be easily distinguished from the rest. We also indicate the number of vacation days and whether they will be calendar or business days. We can learn the difference between these days through this post: Vacation days in calendar or business days. We also choose whether holidays are counted or not within the vacation count and whether these vacations expire at the end of the year or if the days accumulate.
Additionally, we will establish the staff's free days. You can find more information about this in the post How to set up the Vacation Policy. In the Annual vacation policy field, we can inform about possible modifications to the policy and thus have a history of them. We explain all the steps in the post How to modify the vacation policy. Finally, we will mark the Add button to save the changes