现在，您可以使用服务帐号访问您的 Manufacturer Center 帐号，方法是使用 Google 应用默认凭据流程或直接使用服务帐号流程。Manufacturer Center API 示例显示了如何采用每种受支持的编程语言将这两个流程用于服务帐号凭据。查看代码示例以试用新的服务帐号，并了解在您自己的代码中使用服务帐号需要哪些更改。
常见问题解答
我可以使用我的服务账号登录 Manufacturer Center 网页界面吗？
不可以，服务帐号不是常规 Google 帐号，因此无法访问 Manufacturer Center 网页界面。
我需要多久刷新一次服务账号访问令牌？
访问令牌在 Google OAuth 2.0 授权服务器签发一小时后过期。当访问令牌到期时，应用应使用客户端库来提取另一个访问令牌。
[null,null,["最后更新时间 (UTC)：2025-08-31。"],[[["\u003cp\u003eService accounts enable applications to programmatically access the Manufacturer Center API using OAuth 2.0 without user intervention.\u003c/p\u003e\n"],["\u003cp\u003eTo use a service account, generate service account credentials in Google Cloud Console, enable the Manufacturer Center API, and download the JSON key file.\u003c/p\u003e\n"],["\u003cp\u003eAdd the service account as a user to your Manufacturer Center account with the appropriate role for API access.\u003c/p\u003e\n"],["\u003cp\u003eAccess your Manufacturer Center account programmatically using Google Application Default Credentials or the service account flow, referencing the provided samples.\u003c/p\u003e\n"],["\u003cp\u003eService accounts cannot be used to log into the Manufacturer Center web user interface but solely for API interaction.\u003c/p\u003e\n"]]],[],null,["# Using OAuth 2.0 service accounts with the Manufacturer Center API\n\nService accounts are special Google accounts that can be used by applications to\naccess Google APIs programmatically via OAuth 2.0. A service account uses an\nOAuth 2.0 flow that does not require additional authorization. Instead, it uses\na key file that only your application can access. This guide discusses how to\naccess the Manufacturer Center API with service accounts.\n| **Note:** Applications using service accounts for authentication can only access your own Manufacturer Center account. If you are writing a third-party application that needs access to your clients' Manufacturer Center accounts, see the [Authorizing Requests](/manufacturers/how-tos/authorizing) guide instead.\n\nPrerequisites\n-------------\n\n- A [Manufacturer Center](//manufacturers.google.com/) account.\n\nSteps to using a service account to access the Manufacturer Center API\n----------------------------------------------------------------------\n\n1. Generate service-account credentials or access the public credentials you've\n already generated. You will need to create an OAuth 2.0 Client ID and obtain\n a \\*.json private key file:\n\n 1. Go to the [Google API Console](https://console.cloud.google.com/apis/library).\n\n 2. Select a project in the drop-down menu at the top of the page. If you do\n not have one yet, create one by clicking **Create Project**.\n\n 3. If you have not already enabled the Manufacturer Center API for this\n project, then search for it in the list of Google APIs and enable it.\n\n 4. In the sidebar on the left, select **Credentials**.\n\n 5. To set up a service account, select **Create credentials** , and then\n **Service account key**.\n\n 1. On the next page, select **New service account** from the drop-down\n list.\n\n 2. Name the new service account. This\n also serves as the default username for the service account ID. Remember\n the service account ID for use later.\n\n | **Note:** The choice of role for the service account will not have any effect on what calls can be made to the Manufacturer Center API, as access to Manufacturer Center API methods is determined instead by the role associated with the service account ID in Manufacturer Center. If you are unsure what to pick, just pick Project►Viewer.\n\n 1. Select **JSON** for the key type, then click **Create**.\n\n 2. The **Create** button will change to **Creating...**, and once the key\n generation finishes, it will automatically download the private key as a\n \\*.json file.\n\n | **Important:** Protect the \\*.json key file that allows a service account to access the Google services for which it has been authorized. It is good practice to allow service accounts to only access one Google API each. This is a preventative measure to mitigate the amount of data an attacker can access in the situation that the service account's \\*.json key file is compromised.\n 1. You will be returned to the Credentials page, and you should see the new service account in the list of service account keys for your account.\n2. Add the new service account as a user to your Manufacturer Center account.\n If you are a third party developer, you will need to have your client do\n this step for you.\n\n 1. Go to your [Manufacturer Center account](//manufacturers.google.com/).\n\n 2. Go to the 'Users' list in the settings of your Manufacturer Center\n account.\n\n 3. Click the +User button, and use the service account ID as the email\n address for the new user.\n\n 4. Fill in the form with the [service account ID](#service-account-name),\n and select the desired user role(s). At least one must be chosen, and\n use of the `Accounts` service requires the Admin role.\n\n If you did not take note of the service account ID earlier, go to the\n [Service Accounts](https://console.developers.google.com/iam-admin/serviceaccounts/)\n administration page and select the project you created.\n\n 1. Click on the **Save** button. You will be returned to the list of users,\n and the service account ID should be listed with the chosen user role(s).\n\n 2. Repeat the process for all other service accounts you want to add.\n\n 3. View existing service account users by going to the Users tab. These\n will be users with an email address ending in 'gserviceaccount.com'.\n\n3. Now you can access your Manufacturer Center account using the service\n account either by using the [Google Application Default\n Credentials](/identity/protocols/application-default-credentials) flow or by\n using the [service account flow](/identity/protocols/OAuth2ServiceAccount)\n directly. The Manufacturer Center API [Samples](/manufacturers/libraries)\n show how to use both flows for service account credentials in each supported\n programming language. See the code samples to try out your new service\n account and to learn what changes you will need to use service accounts in\n your own code.\n\nFrequently asked questions\n--------------------------\n\n#### Can I log into the Manufacturer Center web user interface with my service account?\n\nNo, service accounts are not regular Google accounts and cannot access the\nManufacturer Center web user interface.\n\n#### How often do I need to refresh service account access tokens?\n\nAccess tokens expire one hour after they are issued by the Google OAuth 2.0\nAuthorization Server. When an access token expires, the application should use\nthe client library to fetch another access token."]]
