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Documentation Updates

Check out the latest updates to our UID2 documentation resources.

Q1 2025​

The following documents were released in this quarter.

UID2 Private Operator for AKS Integration Guide​

March 19, 2025

A UID2 participant who wants to be a Private Operator can now set up the UID2 Operator Service as a Private Operator in an Azure Kubernetes Service (AKS) cluster, running on virtual nodes on Azure Container Instances (ACI).

For details, see UID2 Private Operator for AKS Integration Guide.

Server-Side Integration Guide for Mobile​

March 18, 2025

We've added a guide for mobile app publishers who want to manage the UID2 token entirely on the server side.

For details, see UID2 Server-Side Integration Guide for Mobile.

UID2 Portal, Sharing Permissions Page​

March 11, 2025

We've significantly expanded and clarified the documentation for configuring sharing permissions in the UID2 Portal.

For details, see Sharing Permissions.

JavaScript SDK Version 4​

March 7, 2025

We've added documentation for the recently released update of the UID2 SDK for JavaScript, version 4.

For details, see SDK for JavaScript Reference Guide.

How the UID2 Token Is Created​

March 7, 2025

We've added a page with high-level information about the steps for creating a UID2 token, including steps, roles, and a diagram.

For details, see How the UID2 Token Is Created.

Snowflake Integration Guide​

February 12, 2025

We've significantly updated the UID2 Snowflake integration, and updated the documentation to match.

For details, see Snowflake Integration Guide.

Instructions for Using the UID2 Portal​

February 10, 2025

We've updated the instructions in the UID2 integration guides, SDK docs, and endpoint docs to include information about account setup in the UID2 Portal.

For details, see any implementation guide: for example, Client-Side Integration Guide for JavaScript or SDK for Android Reference Guide.

These changes also clarify the different procedures for getting credentials depending on the environment: see expanded information on the Credentials and Environments pages.

Advertiser/Data Provider Doc​

January 10, 2025

We've significantly expanded and restructured the Advertiser/Data Provider documentation. We now have one significantly updated overview doc, and separate docs for the three main integration options that come into play: Snowflake, AWS Entity Resolution, and HTTP endpoints.

For details, including a summary of all integration options for advertisers and data providers, see Advertiser/Data Provider Integration Overview.

Publisher SSO Integration Page​

January 8, 2025

We've added a new reference page for publishers who integrate with one or more SSO providers to offer SSO login, and want to retrieve the logged-in user's email address from the SSO provider to generate UID2 tokens.

For details, see Publisher Integration with SSO Providers.

Q4 2024​

The following documents were released in the fourth quarter of 2024.

Zoom-In Tool for Images​

December 15, 2024

The UID2 docs site now includes a zoom-in tool for images.

Just hover over the image and the tool appears as a magnifying glass, then click to view a magnified version of the image.

UID2 Portal Audit Trail Page​

November 15, 2024

The UID2 Portal documentation now includes a new page, Audit Trail.

The Audit Trail page in the UID2 Portal allows users who have the Admin role (see User Roles) to view a detailed log of all past actions performed by or on behalf of the current participant.

LiveRamp Integration Tips​

November 14, 2024

We've added a new reference page with tips for publishers who are using LiveRamp's Authenticated Traffic Solution (ATS) to generate UID2 tokens to be passed in the bid request.

For details, see LiveRamp Integration Tips.

Q3 2024​

The following documents were released in the third quarter of 2024.

Tokens Page​

September 10, 2024

We've added a new reference page with information about tokens.

For details, see UID2 Tokens and Refresh Tokens.

Private Operator Integration Overview​

August 28, 2024

We've added a new page with information about Private Operator integrations.

For details, see UID2 Private Operator Integration Overview.

DSP Direct Integration Instructions​

August 22, 2024

We've added a new guide for DSPs who are not using UID2 SDKs.

For details, see DSP Direct Integration Instructions.

Integration Approaches Page​

July 23, 2024

We've added a new page with information about the different integration approaches: client-side, client-server, and server-side.

For details, see Integration Approaches.

Server-Side Token Generation Page​

July 3, 2024

We've added a new reference page with information for publishers generating the UID2 token on the server side.

For details, see Server-Side Token Generation.

UID2 Integration with Prebid Mobile SDK (Android)​

July 2, 2024

We've added a new section to the two mobile integration guides with instructions for mobile integration using Prebid, currently for Android only:

Q2 2024​

The following documents were released in the second quarter of 2024.

CTV Integration Guide​

June 21, 2024

We've just added a new guide for CTV publishers who want to integrate with UID2.

For details, see CTV Integration Guide.

Opt-Out API​

May 24, 2024

We added documentation for a new API call that checks the opt-out status of raw UID2s.

Given a list of raw UID2s, this endpoint returns the raw UID2s that have opted out, as well as the time that the opt-out took place.

For details, see POST /optout/status.

Client-Side and Server-Side Guides for Mobile​

May 17, 2024

We've added the following integration guides to support publishers who want to implement UID2 for their Android or iOS mobile apps:

UID2 Portal Client-Side Integration Page​

May 6, 2024

The UID2 Portal documentation now includes a new page, Client-Side Integration.

The Client-Side Integration page in the UID2 Portal allows you to set up and manage the values that are needed if you are generating UID2 tokens on the client side, such as specifying your domains.

UID2 Portal API Keys Page​

April 25, 2024

The UID2 Portal documentation now includes a new page, API Keys.

The API Keys page in the UID2 Portal allows you to perform all activities relating to managing API keys, and their associated secret values and permission settings, for your UID2 account.

Documentation for Sharing Including Raw UID2 Sharing​

April 22, 2024

We've completely reworked and significantly expanded the sharing documentation to include instructions for all sharing scenarios.

The documentation now supports additional sharing scenarios, including the ability to share raw UID2s when senders and receivers follow the applicable legal, security, and technical requirements.

For details, see UID2 Sharing: Overview.

Q1 2024​

The following documents were released in the first quarter of 2024.

UID2 Hashing Tool​

March 4, 2024

We've added a new UID2 hashing tool so that you can check that you're normalizing and encoding correctly.

For details, see UID2 Hashing Tool in the Normalization and Encoding documentation.

Java SDK Support for Advertiser/Data Provider​

February 28, 2024

The Java SDK now supports Advertisers and Data Providers wanting to use the POST /identity/map endpoint.

For details, see the updated documentation in the SDK for Java Reference Guide: Usage for Advertisers and Data Providers.

Audience-Specific Sidebars​

February 9, 2024

We've improved the website so that specific users clicking through on the links at the top of the UID2 home page (Publishers, Advertisers, DSPs, Data Providers) now have a custom left sidebar, with the specific documentation that's applicable to that audience.

Anyone wanting to see the full set of docs for all audiences can just click through on the Documentation link on the UID2 home page.

Note that many docs are applicable to multiple audiences, and there are many interlinks between docs, so the sidebar view might change on your journey through the site. You can always get back to your specific view by clicking the link at the top: these links appear on all pages.

To view the custom sidebars, go to https://unifiedid.com and click on one of the audience links at the top: Publishers. Advertisers, DSPs, or Data Providers.

UID2 Integration Overview for JavaScript​

January 26, 2024

We've added a new overview guide summarizing the options for publishers using the SDK for JavaScript for client-side or client-server integration. In addition, the existing guides have been renamed for consistency, with minor updates.

For details, see:

SDK for Java, Publisher Sections​

January 22, 2024

We've added new sections in the SDK for Java documentation to help publishers implementing the SDK.

For details, see Usage for Publishers in the SDK for Java Reference Guide.

Normalization and Encoding Examples​

January 19, 2024

We've expanded and clarified the existing Normalization and Encoding doc, and added a new examples section to help you make sure that you're following the process correctly.

For details, see Normalization and Encoding.

Web Integration Overview for Publishers​

January 16, 2024

We've added a new page summarizing the web integration options available to publishers integrating with UID2.

For details, see Publisher Web Integration Overview.

UID2 Operator Page​

January 3, 2024

We've added a reference page explaining what the UID2 Operator does and the differences between a Public Operator and a Private Operator.

For details, see The UID2 Operator.

Q4 2023​

The following documents were released in the fourth quarter of 2023.

UID2 Integration Overview for Prebid​

December 20, 2023

A new overview guide summarizes the publisher options for integrating Prebid with UID2.

In addition, the existing guides have been restructured and simplified.

For details, see:

Encrypt/Decrypt Examples, Java and C#​

December 14, 2023

We've added instructions and code examples for encrypting UID2 requests and decrypting responses in additional programming languages. To the existing Python example, we've added Java and C#.

For details, see Encryption and Decryption Code Examples.

UID2 Private Operator for Azure Integration Guide​

November 30, 2023

A UID2 participant who wants to be a Private Operator can now set up the UID2 Operator Service in an instance of Confidential Containers, a confidential computing option from Microsoft Azure.

For details, see UID2 Private Operator for Azure Integration Guide.

API Permissions​

November 22, 2023

A new article in the Getting Started section of the UID2 website provides information about the key UID2 permissions, the types of participants that commonly use them, and the key associated activities.

For details, see API Permissions.

UID2 Credentials Page​

November 21, 2023

We've replaced the previous API Keys page with a new page that includes information about the credentials for those following a server-side implementation strategy.

For details, see UID2 Credentials.

Client-Side Integration Guide for JS​

November 21, 2023

The Client-Side Integration Guide for JavaScript is a completely new document at the existing URL, covering a new, simpler way of using the SDK for JavaScript for a client-side publisher implementation.

For details, see Client-Side Integration Guide for JavaScript.

The content that was in the previous SDK for JavaScript Integration Guide is now in a supplementary document for publishers who want to implement the JavaScript SDK on the server side.

note

This document was updated in January 2024 to Client-Side Integration Guide for JavaScript, and the JavaScript Standard Integration Guide is now the Client-Server Integration Guide for JavaScript.

UID2 Client-Side Integration Guide for Prebid.js​

November 2, 2023

The UID2 Client-Side Integration Guide for Prebid.js is a completely new document at the existing URL, covering a new, simpler way of integrating UID2 with Prebid that does not require any server-side work.

The content that was in the previous version of the Prebid document is now in a supplementary document, Prebid.js Advanced Integration Guide, for publishers who are using a private operator or who prefer to implement token generate on the server side.

note

These documents were further updated in later revisions. Updated links are as follows:

Opt-Out Page​

October 31, 2023

This new reference topic provides an overview of user opt-out.

For details, see User Opt-Out.

AWS Entity Resolution Integration Guide​

October 19, 2023

This new guide provides information for using AWS Entity Resolution, an identity resolution product from Amazon Web Services that allows AWS customers to integrate with the UID2 framework.

This service allows you to map DII (email addresses or phone numbers) to raw UID2s swiftly and securely.

For details, see AWS Entity Resolution Integration Guide.

SDK for JavaScript Version 3​

October 10, 2023

Significant documentation updates reflect the enhanced functionality of Version 3 of the SDK for JavaScript. The new documentation includes a migration guide for those upgrading from an earlier version of the SDK.

For details, see:

Q3 2023​

The following documents were released in the third quarter of 2023.

Private Operator Guide for Google Confidential Space​

September 30, 2023

This new guide provides information for setting up the UID2 Operator Service in Confidential Space, a confidential computing option from the Google Cloud Platform.

For details, see UID2 Private Operator for GCP Integration Guide.

Normalization and Encoding Rules​

September 7, 2023

We clarified the instructions for normalizing and encoding directly identifying information (DII) to create a raw UID2 or UID2 token.

For details, see:

IMA Mobile Plugin for Android​

August 8, 2023

A new guide for publishers that provides information about the UID2 Interactive Media Ads (IMA) Plugin for Android. This plugin enables publishers who use the Google IMA SDK for Android to send UID2 tokens as secure signals in ad requests from Android apps.

For details, see UID2 IMA Plugin for Android Integration Guide.

IMA Mobile Plugin for iOS​

August 8, 2023

A new guide for publishers that provides information about the UID2 Interactive Media Ads (IMA) Plugin for iOS. This plugin enables publishers who use the Google IMA SDK for iOS to send UID2 tokens as secure signals in ad requests from iOS apps.

For details, see UID2 IMA Plugin for iOS Integration Guide.

GMA Mobile Plugin for Android​

August 4, 2023

A new guide for publishers that provides information about the UID2 Google Mobile Ads (GMA) Plugin for Android. This plugin enables publishers who use the Google GMA SDK to send UID2 tokens as secure signals in ad requests from Android apps.

For details, see UID2 GMA Plugin for Android Integration Guide.

GMA Mobile Plugin for iOS​

August 4, 2023

A new guide for publishers that provides information about the UID2 Google Mobile Ads (GMA) Plugin for iOS. This plugin enables publishers who use the Google GMA SDK to send UID2 tokens as secure signals in ad requests from iOS apps.

For details, see UID2 GMA Plugin for iOS Integration Guide.

UID2 Website in Japanese​

August 3, 2023

The entire UID2 website is now available in Japanese as well as English.

For details, use the language drop-down at the top of any site page, or go straight to the Unified ID 2.0 page in Japanese.

UID2 Portal Documentation​

August 3, 2023

We published several new documentation pages to help users navigating the new UID2 Portal user interface, where you can manage your UID2 account.

For details, see UID2 Portal: Overview.

Documentation for UID2 Sharing​

August 3, 2023

We published the following new and updated documents to support use of the new UID2 sharing feature:

Android SDK Guide​

August 3, 2023

A new guide for publishers that provides information about the SDK for Android, an SDK that facilitates the process of establishing client identity using UID2 and retrieving UID2 tokens for publishers who need to support Android apps.

For details, see SDK for Android Reference Guide.

iOS SDK Guide​

August 3, 2023

A new guide for publishers that provides information about the SDK for iOS, an SDK that facilitates the process of establishing client identity using UID2 and retrieving UID2 tokens for publishers who need to support iOS apps.

For details, see SDK for iOS Reference Guide.