---
title: "Purchase & Installation"
source: "https://docs.nexcess.com/category/purchase-installation/"
description: "Covers Installation & License Keys, Making Purchases, Plugin Updates and Renewing & Upgrading. Includes Why the ‘Destination Folder Already Exists’ Error Happens in WordPress and How to Fix It. 1 article."
taxonomy: "category"
articles: "1"
---

# Purchase & Installation

Covers Installation & License Keys, Making Purchases, Plugin Updates and Renewing & Upgrading. Includes Why the ‘Destination Folder Already Exists’ Error Happens in WordPress and How to Fix It. 1 article.

## Sections

- [Installation & License Keys](https://docs.nexcess.com/category/purchase-installation/installation-license-keys.md): Includes The Events Calendar “Upgrade to Pro” Message Appears Despite Having a Valid License, Using One License for Both a Live and Local Development Site, What’s Included in Each License, Finding and Inputting Your License Key and Moving a License Key From One Site to Another. 11 articles.
- [Making Purchases](https://docs.nexcess.com/category/purchase-installation/making-purchases.md): Includes What Kind of Payments Do You Accept?, Do You Provide Discounts if I Purchase Multiple Products?, Do You Provide Discounts if I Purchase Multiple Products? and Who Should Buy the Subscription, the Client or the Developer?. 4 articles.
- [Plugin Updates](https://docs.nexcess.com/category/purchase-installation/plugin-updates.md): Includes Fixing the “Please Install or Upgrade” Warning for Events Calendar Pro or Event Tickets Plus, Testing Updates in a Staging Environment, Creating Site Backups, Troubleshooting: Our Premium plugins not automatically activated after an update and Plugin Update Notifications. 8 articles.
- [Renewing & Upgrading](https://docs.nexcess.com/category/purchase-installation/renewing-upgrading.md): Includes Renewing a License or Subscription, Upgrading a Subscription and What Happens if I Cancel My Promoter Subscription?. 3 articles.

## Articles

- [Why the ‘Destination Folder Already Exists’ Error Happens in WordPress and How to Fix It](https://docs.nexcess.com/software/the-events-calendar/destination-folder-already-exists-resolved.md): When updating or installing The Events Calendar or our other plugins, you might encounter a frustrating error message: "Destination Folder Already Exists." This…