[null,null,["最后更新时间 (UTC)：2025-07-25。"],[[["\u003cp\u003ePartners can seamlessly integrate their merchants to Merchant Center by leveraging a Multi-Client Account (MCA) and the Content API for Shopping.\u003c/p\u003e\n"],["\u003cp\u003eMerchants can either create a new Merchant Center account or connect an existing one during the onboarding process, with considerations for potential program issues or existing settings.\u003c/p\u003e\n"],["\u003cp\u003eMCAs allow management of data for individual merchant accounts as sub-accounts, subject to the MCA's quotas for sub-accounts, offers, and feeds.\u003c/p\u003e\n"],["\u003cp\u003ePartners should provide clear guidance and options to merchants for account creation or connection, including considerations for multiple accounts and websites.\u003c/p\u003e\n"],["\u003cp\u003eExisting MC accounts cannot be managed using your MCA UI as they cannot be moved under your MCA; therefore they can only be managed using the Content API.\u003c/p\u003e\n"]]],["Merchants can either create new Merchant Center (MC) accounts or connect existing ones. Partners utilize a Multi Client Account (MCA) to manage merchant sub-accounts via the Content API. New sub-accounts are created under the MCA, while existing ones can only be managed through the API. Merchants are presented with options to create or connect their account, and can manage multiple accounts. The MCA must be linked with each merchant account via the `Accounts.link` API method. MCA's have quotas limiting the number of accounts and offers.\n"],null,["1.2 Merchant Center Account Infrastructure Overview\n---------------------------------------------------\n\n### Introduction and Business Impact\n\n*** ** * ** ***\n\nThe first step is to create the infrastructure to provide the ability\nto your merchants to create a new Merchant Center account\nor connect their existing Merchant Center.\nDepending on what your Merchant chooses, there are different account setup steps\nfor them to complete the initial aspect of onboarding.\n\n### UX Guidance\n\n*** ** * ** ***\n\n#### Provide the option to your user to create a new or connect their existing account\n\nThe merchant is prompted to either create a new Merchant Center account\nor connect to an existing one:\n\nBelow is an example of an option for a single pre-existing MC Account:\n\nBelow is an example of an option for several pre-existing MC Accounts:\n\nLearn more about [the steps needed for existing MC accounts](/merchant/storebuilder/online/sections/1_2B_1_existing_account_connection).\n\n### Tech Guidance\n\n*** ** * ** ***\n\nThere are various steps to go over in this section to ensure your merchants\nfollow the best path that best suits their needs:\n\n- Overview of the architecture of the build\n- Creating and confirming you have a Multi Client Account (MCA)\n- Providing the option to your user to create a new or connect their existing account\n- New Merchant Center Account Creation\n- Existing Merchant Center Connection\n\n#### Overview of the architecture of the build\n\nPartners leverage an MCA and the Content API for Shopping to seamlessly\nintegrate their merchants to Merchant Center.\n\n**The numbers correspond below correspond with the diagram above:**\n\n1. The Multi Client Account (MCA) is a \"Manager\" account used to organize\n merchants' sub-accounts (MC accounts).\n MCA is the only way to create new sub-accounts using the Content API.\n\n2. One of your merchants may want to use an existing MC account\n if they have one\\*.\n Existing MC accounts cannot be managed using your MCA UI as they cannot be\n moved under your MCA. Therefore they can only be managed using the content API.\n\n3. The Content API lets you manage any sub accounts (MC accounts)\n as long as you were granted access (OAuth 2.0).\n\n4. All merchant MC accounts (including sub-accounts) must be linked to your MCA\n using `Accounts.link` API method.\n *(Learn more about how [Account Linking](/merchant/storebuilder/online/sections/1_3_account_linking) works)*\n\n#### Create and confirm you have a Multi Client Account (MCA)\n\nThe Multi Client Account lets you manage data for individual merchant accounts\nas sub-accounts (MC Accounts).\n*([Learn more about Multi Clients accounts](https://support.google.com/merchants/answer/188487) (MCA))*\n\n**Steps to create your Multi Client Account (MCA)**\n\n1. [Create a Merchant Center account](https://www.google.com/retail/solutions/merchant-center/). We recommend you to create\n a new Google Account and use it to create your MCA.\n This ensures there aren't account suspensions associated with the account\n which causes delays to convert.\n\n2. Don't verify or claim a website for this MC as you use it as an MCA.\n\n3. Request Google to [convert your MC Account to MCA](https://support.google.com/merchants/contact/account2).\n\n4. Google converts your account.\n\n| **Note:** You may want to have a MCA for development purposes and another one for production\n\n**Organizing merchant sub accounts (MC accounts)\nwith your Multi Client Account**\n\nEach merchant sub-account (MC account) can have a distinct store name\nand a unique website URL.\nThe figure below demonstrates how you can organize one or more MCA:\naccounts for your merchants, who may have more than one online store,\nand in more than one country:\n\n- **Single Domains** (such as myshop.com) under an MCA can be associated\n with separate Merchant Center subaccounts.\n\n- **Different Domains** (such as us.myshop.com) and **subdirectories**\n (such as myshop.com/us) in that domain can use the same Merchant Center account.\n\n- **Separate domains** (such as games.com, sneaker.com, myshop.fr and myshop.de)\n require a separate merchant account for each domain.\n\nAvoid having multiple websites that contain similar content,\nas that could lead to account disapproval.\n*([Learn more about our policies on duplicate content.](https://support.google.com/merchants/answer/2700314))*\n\n#### Quota Management\n\nFor Merchant Center sub-accounts created under your MCA,\nthese merchants are subject to your MCA's quota.\nThese are quotas such as sub accounts, offers, and feeds.\nFor offer quotas increases, it is imperative to ensure you keep your MCA's total\nproduct disapproval to a range 10-20% to avoid any issues with future increases.\nOnce your MCA hits the max quota of your account,\nyou are not able to add more offers or sub-accounts to your account.\n\nFor quota increase requests, reach out to your Google POC or file for a request\nin the [Quota Request form](https://support.google.com/merchants/contact/additional_items?sjid=16756436723795826737-EU).\nWe recommend keeping an eye on your quota as it takes time to process.\n| **Important:** A multi-client account (MCA) is limited to 50 client accounts initially. If you need more than 50 accounts or ever need increases in the future, you can request more using the [quota form](https://support.google.com/merchants/contact/additional_items) or reach out to your Google POC if you have one.\n\n#### Provide the option to your user to create a new or connect their existing account\n\nMerchants need to decide if they want to create a new Merchant Center account\nor use an existing Merchant Center account.\n\n- **Merchant decides to create a new account:**\n We recommend you notify the merchant that creating a new account can have\n existing shopping program issues due to website claiming.\n\n- **There needs to be at least one merchant center account per merchant:**\n If a merchant has an existing account or a gmail, use [`accounts.authinfo`](https://developers.google.com/shopping-content/reference/rest/v2.1/accounts/authinfo)\n to find if the merchant has an existing account.\n\n- **Display options to the users:**\n The merchant can decide if they want to use an existing account\n or create a new one.\n If they use an existing account, we recommend you notify the merchant this could\n reset existing settings (for example, Tax/Shipping).\n\n- **Onboarding multiple account:**\n You should allow user to onboard multiple accounts -\n either through a multi-select or through multiple paths through the onboarding\n flow (used when merchant has multiple websites)"]]
