# User info User information is essential for attribution channels, so it’s crucial to capture it as early as possible. This information is stored in your dedicated ID graph, where, in addition to personally identifiable information (PII), we also store click IDs and any custom data you wish to include. We have two ways of sending us user info: * **user**: This is used for a single property, and it only accepts standard keys. * **data**: Allows saving multiple properties simultaneously, including custom and standard keys. Let's start by examining what the standard keys look like. --- # 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://docs.edgetag.io/implementation/browser/user-info.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.