> For the complete documentation index, see [llms.txt](https://docs.rmhpos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rmhpos.com/installation/install-central-manager-multi-store/installation-cm-activate-license.md).

# Activate the Central User license

The license key for Central Manager is a floating user license key. With floating user license keys, when you open an app, the app claims an available license. When you close the app, the license is released. If all available user licenses are claimed, additional users cannot open and use the app until one of the floating licenses is released or more licenses are purchased.

{% hint style="warning" %}
The Central Manager and Central Client apps use license keys issued from the new RMH Hub. Contact <sales@rmhpos.com> for more information about the RMH Hub.
{% endhint %}

1. Open **Central Manager**. The shortcut should be available on your desktop.
2. Enter the license key and click **Activate**.

<div align="left"><img src="/files/nstoC2hRHc9UaHkLUG5D" alt=""></div>

3. Click **OK**.

<div align="left"><img src="/files/as9a6H6JIGcZz6YHlYS9" alt=""></div>


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