Installation [1.3.x]
Note: Be aware that initializing this plugin will automatically create all necessary Issue Types, Screen Configurations, Workflows, Post-Functions, Schemes and Project that are essential for Vacation Manager integration with JIRA. It is good practice to create full backup of your JIRA before installing new plugin.
 If you perform add-on upgrade, then it's necessary to follow a proper procedure (i.e. from version 1.2.x to 1.3.x) - if it won't be done, the add-on will not work as intended.
You can download and install Vacation Manager just like any other plugin for JIRA, via built-in Atlassian Marketplace. To do this please follow those steps:
Log into your JIRA instance as an admin
Click the admin dropdown and choose Atlassian Marketplace
Click Find new add-ons from the left-hand side of the page
Locate Vacation Manager for JIRA via search
Click Try free to begin a new trial or Buy now to purchase new license for Vacation Manager for JIRA
Enter your information and click Generate license when redirected to MyAtlassian
Click Apply license
Please keep in mind that currently Vacation Manager for JIRA is NOT compatible with JIRA Cloud.
After installation you are ready to go - you can now initialize Vacation Manager and create your first vacation type.
Feel free to tell us what topic should be covered: vacationmanager@psc-software.atlassian.net