# Networks IDs

We categorise Network IDs into two groups: **Device-based Network IDs** and **User-based Network IDs**. Each category allows you to add custom identifiers or subscribe to existing ones.

<img src="/files/5dAykuTmeaggoYrTm5dX" alt="" class="gitbook-drawing">

To integrate a Device-based or User-based Network ID, the steps are generally:

1. Create a new / Subscribe to a Device Registry or Compartment
2. Activate this Device Registry or Compartment on the desired Datamarts (only required where there is multiple datamarts in your environment)
3. Activate the Device Registry or Compartment ingestion on your Channels

Don't hesitate to check the documentation of a particular Network ID below for more information and detailed procedures.


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