> ## Documentation Index
> Fetch the complete documentation index at: https://developers.lucca.fr/llms.txt
> Use this file to discover all available pages before exploring further.

# The leave-period resource

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  <img src="https://mintcdn.com/lucca/Vgl2r60yMabpphKF/assets/images/legacy-timmi-absences-uml.png?fit=max&auto=format&n=Vgl2r60yMabpphKF&q=85&s=85274996f5f0553057d0ff149d1e698d" alt="Lucca Absences - UML" width="135" height="471" data-path="assets/images/legacy-timmi-absences-uml.png" />
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Absences from work, wether they are planned or not, are described in Lucca using three concepts : **LeaveRequests**, **LeavePeriods** and **Leaves**.

A **LeaveRequest** represent the request made by employees when planning time off. This resource is used for workflow purposes.

A **LeavePeriod** is the continuous period of absence requested by the employee or entered by HR. It is linked to a **LeaveRequest** if workflow applies.

A **Leave** is the subdivision of a **LeavePeriod**. There is one **Leave** per half-day of the **LeavePeriod**. Each **Leave** is linked to a **LeaveAccount**, which represent the type of leave (PTO, Sick Leave, Congés payés, RTT, etc).