The field must be a UTF-8 encoded string with a length limit of 1,000
characters. Otherwise, an INVALID_ARGUMENT error is returned.
This should not be set when using the client side event reporting with
GTM or JavaScript tag in
[UserEventService.CollectUserEvent][google.cloud.discoveryengine.v1.UserEventService.CollectUserEvent]
or if
[UserEvent.direct_user_request][google.cloud.discoveryengine.v1.UserEvent.direct_user_request]
is set.
Highly recommended for logged-in users. Unique identifier for logged-in
user, such as a user name. Don't set for anonymous users.
Always use a hashed value for this ID.
Don't set the field to the same fixed ID for different users. This mixes
the event history of those users together, which results in degraded
model quality.
The field must be a UTF-8 encoded string with a length limit of 128
characters. Otherwise, an INVALID_ARGUMENT error is returned.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe \u003ccode\u003eUserInfo\u003c/code\u003e class in the Google Cloud Discovery Engine v1 API represents information about an end user, inheriting from \u003ccode\u003eobject\u003c/code\u003e and implementing multiple interfaces like \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, and \u003ccode\u003eIDeepCloneable\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the API documentation available is 1.6.0, with versions back to 1.0.0-beta06 also accessible for reference.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eUserInfo\u003c/code\u003e class contains properties like \u003ccode\u003eUserAgent\u003c/code\u003e (user agent string) and \u003ccode\u003eUserId\u003c/code\u003e (unique user identifier), both of which have specific requirements for length and encoding.\u003c/p\u003e\n"],["\u003cp\u003eThe class provides a default constructor (\u003ccode\u003eUserInfo()\u003c/code\u003e) and a copy constructor (\u003ccode\u003eUserInfo(UserInfo other)\u003c/code\u003e) to create new instances.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eUserInfo\u003c/code\u003e class is part of the \u003ccode\u003eGoogle.Cloud.DiscoveryEngine.V1\u003c/code\u003e namespace, with its containing assembly being the \u003ccode\u003eGoogle.Cloud.DiscoveryEngine.V1.dll\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
