--- title: "User & Audience Data" slug: "user-audience-data" updated: 2024-09-20T00:19:50Z published: 2024-09-20T00:19:50Z canonical: "help.yahooinc.com/user-audience-data" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.yahooinc.com/llms.txt > Use this file to discover all available pages before exploring further. # User & Audience Data Explore the articles listed below to get started with DataX user and audience data. | **Topic** | **Description** | | --- | --- | | [Overview](/datax/docs/user-and-audience-data-overview) | Upload user/audience data | | [Metadata](/datax/docs/user-and-audience-data-metadata) | Audience metadata structure | | [General Rules for Formatting User/Audience Data](/datax/docs/formatting-rules) | User/audience formatting rules | | [POST /AUDIENCE](/datax/docs/post-audience) | Export syndicated/custom/advertiser segments | | [POST /AUDIENCE/SEGMENT/{ID}](/datax/docs/post-audiencesegment) | Individual taxonomy entity upload | | [POST /AUDIENCE/ATTRIBUTE/{ID}](/datax/docs/post-audienceattributeid) | Upload individual user values | | [POST /AUDIENCE/OPT-OUT](/datax/docs/post-audienceopt-out) | Opt out one or more sets of users | | [GET /AUDIENCE](/datax/docs/getaudience) | Look at recently uploaded data | | [Error Codes](/datax/docs/user-audience-data-error-codes) | Audience errors and descriptions |