> ## Documentation Index
> Fetch the complete documentation index at: https://docs.datalyr.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Advanced

> Configure custom collection, identity, delivery, and privacy.

Use these guides after the standard installation and revenue source are working.

| Guide                     | Use it when                                                    |
| ------------------------- | -------------------------------------------------------------- |
| **Custom events**         | Your product has an action Datalyr cannot infer automatically. |
| **Identity**              | Anonymous activity must connect to a known customer.           |
| **Attribution**           | You need to verify how campaign context reached revenue.       |
| **Conversion delivery**   | A business event should be sent to an ad platform.             |
| **First-party tracking**  | You want supported tracking on your own subdomain.             |
| **Cross-domain tracking** | The journey moves between sites or checkouts.                  |
| **Pixels and scripts**    | Datalyr should load a supported browser tag.                   |
| **App campaigns**         | A campaign moves from web or ad click into a mobile app.       |
| **Privacy and redaction** | Collection or delivery must follow stricter controls.          |

<Warning>
  Change one part of the setup at a time and complete a controlled test. Identity, attribution, and conversion rules affect future data across the workspace.
</Warning>