The value must be a UTF-8 encoded string with a length limit of 128
characters, and match the pattern: [a-zA-Z][a-zA-Z0-9_]*. For example,
id0LikeThis or ID_1_LIKE_THIS. 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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003ePromotion\u003c/code\u003e class in the Google Cloud Retail V2 API provides a way to define and manage promotion information within the context of retail applications.\u003c/p\u003e\n"],["\u003cp\u003eThis documentation provides reference materials for the \u003ccode\u003ePromotion\u003c/code\u003e class across multiple versions, ranging from version 1.0.0 to the latest version 2.12.0, allowing users to view the changes and features of each.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePromotion\u003c/code\u003e class implements several interfaces such as \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e, signifying its integration within the Protocol Buffers framework.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePromotion\u003c/code\u003e class has two constructors, one default and another that accepts another \u003ccode\u003ePromotion\u003c/code\u003e instance as a parameter, to offer multiple ways to instantiate and copy a promotion object.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePromotion\u003c/code\u003e class includes a \u003ccode\u003ePromotionId\u003c/code\u003e property, a string that must be a maximum of 128 UTF-8 characters and follow the given pattern, which is used as the identifier for each promotion.\u003c/p\u003e\n"]]],[],null,[]]
