# 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.

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.

* 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. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.tellius.com/tellius-6.3/settings/user-license.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.