[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-13 UTC."],[[["\u003cp\u003eThe Merchant API is the new version of the Content API for Shopping and represents the future of product data integration with Google.\u003c/p\u003e\n"],["\u003cp\u003eThe beta version of the Merchant API is now available for developers to explore and help shape its future development.\u003c/p\u003e\n"],["\u003cp\u003eDevelopers can learn more about the benefits and features of the Merchant API, including how it can enhance integrations, in the official announcement blog post.\u003c/p\u003e\n"],["\u003cp\u003eProducts in the Merchant API are identified using various IDs, such as \u003ccode\u003eofferId\u003c/code\u003e, REST ID, \u003ccode\u003eproductId\u003c/code\u003e, and \u003ccode\u003eexternal_seller_id\u003c/code\u003e, each with specific characteristics and usage contexts.\u003c/p\u003e\n"],["\u003cp\u003eA comprehensive table provides detailed explanations and examples of different product ID attributes, outlining their purpose and format.\u003c/p\u003e\n"]]],["The beta version of the Merchant API, the new Content API for Shopping, is introduced. Merchants assign an `offerId` to products. Google assigns a unique REST ID in the format `channel:contentLanguage:feedLabel:offerId`; this is also the `productId` and `id` in API calls. Marketplaces assign `external_seller_id` to offers for multi-seller accounts, it has specific format requirements. The Merchant API offers integration improvements; details on this and providing feedback are available via a linked article.\n"],null,["# Product IDs\n\nHere are the different kinds of product IDs in the Content API for Shopping:\n\nOffer ID\n: An `offerId` is a string assigned to a product by a merchant. This ID\n represents an individual product.\n: `offerId` is unique to the set of offers in the Merchant Center database, and\n is usually a numeric sequential number.\n: `offerId` can be an internal SKU number that a merchant assigns to the product.\n\nREST ID\n: A REST ID is the unique identifier for a product assigned by Google.\n: REST ID is the `productId` for REST API calls.\n\n: REST IDs are aggregates with the format `online:en:label:1111111111`. The\n REST ID consists of the following 4 parts, separated by colons:\n\n 1. Channel (\"online\" or \"local\")\n 2. Content Language (using the 2-letter designation, for example `en` or `fr`)\n 3. Feed label (might be the two-letter code for the feed's target country, for example `US` or `FR`)\n 4. Offer ID\n\n: You put this together as `channel:contentLanguage:feedLabel:offerId`, for\n example, `online:en:US:1111111111`.\n\nExternal Seller ID (Marketplaces)\n\n: [Marketplaces](//support.google.com/merchants/answer/6363319)\n must assign an `external_seller_id` to offers uploaded to a multi-seller\n account. This field represents an individual seller.\n\n `external_seller_id` values are case-sensitive, and must meet the following\n criteria:\n\n - 1-50 characters in length\n - Only alphanumeric ASCII characters, and underscore (_), hyphen (-), period (.), and tilde (\\~)\n\n This isn't the same as the internal\n [`seller_id`](/shopping-content/reference/rest/v2.1/accounts) field.\n\nThe following table summarizes some of the IDs that can be associated with a\nproduct:\n\n| Attribute | Description | Example | Notes |\n|----------------------|---------------------------------------------------------------------------------------------------|------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------|\n| `offerId` | An ID assigned to a product by a merchant. | `1111111111` | String data type, unique identifier for a product's offer. |\n| REST ID | An ID assigned to a product by Google. In the format `channel:contentLanguage:feedLabel:offerId`. | `online:en:label:1111111111` | Full ID including `offerId`. |\n| `productId` | Used to refer to the REST ID in API calls. | `online:en:label:1111111111` | This is the REST ID of a product. |\n| `id` | Same value as REST ID and `productId`. | `online:en:label:1111111111` | Used inside JSON body of a product to refer to its `productId`. |\n| `external_seller_id` | A seller ID chosen by the Marketplace. | `example-Seller1` | Required for multi-seller accounts. Must be 1-50 characters. Case-sensitive. Digits, and special characters _, -, ., and \\~ are accepted. |"]]