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.
Corresponds to Google Merchant Center property
promotion_id.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 webpage provides documentation for the \u003ccode\u003ePromotion\u003c/code\u003e class within the Google Cloud Retail v2 API, showing the class's methods, properties and functionality.\u003c/p\u003e\n"],["\u003cp\u003eThe most recent version available for the \u003ccode\u003ePromotion\u003c/code\u003e class is 2.12.0, with older versions down to 1.0.0 also documented on this webpage.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePromotion\u003c/code\u003e class is designed for handling promotion information, which can be used within the Retail v2 API, with the class inheriting from \u003ccode\u003eobject\u003c/code\u003e and implementing \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePromotion\u003c/code\u003e class can be constructed either as an empty object or as a clone of an already existing \u003ccode\u003ePromotion\u003c/code\u003e object.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ePromotion\u003c/code\u003e class includes a property called \u003ccode\u003ePromotionId\u003c/code\u003e of type string, which is used as an identifier for the promotion and must adhere to specific formatting requirements.\u003c/p\u003e\n"]]],[],null,[]]
