# Advanced Topics

> Guides for advanced users of The Things Stack

Source: https://www.thethingsindustries.com/docs/concepts/advanced/


This section contains advanced topics for The Things Stack


## Pages in this section

- [Working with Users and Organizations](https://www.thethingsindustries.com/docs/concepts/advanced/user-management/index.md): This section explains how to manage users and organizations, and how to grant rights over entities.
- [Adding OAuth Clients](https://www.thethingsindustries.com/docs/concepts/advanced/adding-oauth-clients/index.md): This section contains instructions for creating an OAuth Client.
- [Deleting, Restoring and Purging Entities](https://www.thethingsindustries.com/docs/concepts/advanced/purge/index.md): When entities are deleted, The Things Stack retains some IDs by default to prevent another user re-registering the ID and obtaining historical data. Deleted …
- [Metrics](https://www.thethingsindustries.com/docs/concepts/advanced/metrics/index.md): The Things Stack exports Prometheus telemetry on the /metrics endpoint. This reference gives an overview of the most important metrics.
- [Root Certificates](https://www.thethingsindustries.com/docs/concepts/advanced/root-certificates/index.md): This section contains links to common root SSL certificates used in The Things Stack, issued by trusted certificate authorities (CAs).
- [Telemetry](https://www.thethingsindustries.com/docs/concepts/advanced/telemetry/index.md): This section contains detailed information on telemetry collected by the CLI and by each of The Things Stack's components.