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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 namespace represents promotion information within the Retail v2 API.\u003c/p\u003e\n"],["\u003cp\u003eThis page documents the \u003ccode\u003ePromotion\u003c/code\u003e class, including its constructors, properties like \u003ccode\u003ePromotionId\u003c/code\u003e, inherited members, and implemented interfaces for version 2.9.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePromotion\u003c/code\u003e class can be constructed with no parameters or by cloning an existing \u003ccode\u003ePromotion\u003c/code\u003e object.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePromotionId\u003c/code\u003e property, a string, represents the unique identifier of a promotion, with constraints on its length and allowed characters.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation provides links to prior versions of this class ranging from version 1.0.0 up to the most recent 2.12.0.\u003c/p\u003e\n"]]],[],null,[]]