# User License

## Application License Management

Under **Settings → User License**, the Application License section allows Tellius admins to manage and update the software license to ensure uninterrupted access.

<figure><img src="https://977923713-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJHwf1QFuv1BRPzfSnL2Z%2Fuploads%2FZqkK7Itg1PEqlDJNwNgQ%2Fimage.png?alt=media&#x26;token=e93d845c-1368-42be-98bc-7f6e467eba82" alt="" width="563"><figcaption><p>Application license management</p></figcaption></figure>

1. The license expiry date is displayed to help you stay informed and proactive in renewing it before expiration.
2. **License Type Options:** You can choose between two modes:

* **Online License**: Tellius connects to the licensing server to validate and apply the license key automatically.
* **Offline License**: Useful for air-gapped or restricted environments, where license activation is done manually.

3. Paste your **Application License Key** into the provided input box.
4. Click **Update** to validate and apply the key.

From the application homepage, click on the profile in the bottom left corner and select **About.** The following window will be displayed.&#x20;

<figure><img src="https://977923713-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FJHwf1QFuv1BRPzfSnL2Z%2Fuploads%2FQ6KP8yL2c1L24blamgV9%2Fimage.png?alt=media&#x26;token=75799d35-fcc2-4344-b154-bb8881b1186e" alt="" width="375"><figcaption><p>License</p></figcaption></figure>

* The Tellius version (e.g., `v5.5.0-RC.15`)
* Current license expiration
* A shortcut **Update License** button to quickly access the license entry page and apply a new key.
* After updates, verify successful activation by checking the expiration timestamp under the License section.