添加备用验证方法
设置主要的两步验证方法后，您可以设置一个或多个替代验证方法来作为备用方法。当您的主要验证方法不可用时，这非常有用。
步骤：
在 Shopify 后台，点击您的用户名和账户图片。
点击管理账户 > 安全。
在两步验证部分中，点击添加备用方法
选择以下选项之一：
验证器应用
安全密钥或生物识别技术
备用电话
点击下一步。
根据所选方法设置备用两步验证。
可选：使用此过程设置其他备用方法。
请妥善保存您的恢复代码，万一您无法访问移动设备时可以使用。请确保将恢复代码离线保存到可通过多种方式访问的安全位置，例如移动设备、台式电脑和打印出的文档。
下次登录 Shopify 后台时，您可以选择要使用的验证方法。
两步验证恢复代码
设置两步验证方法时，您可以保存 10 个恢复代码并将其存储在安全位置。如果任何其他验证方法不可用，您都可以使用恢复代码访问 Shopify 后台。例如，在您无法访问移动设备时，如果您已启用了两步验证，您便可以使用其中一个恢复代码登录您的账户。
请确保将恢复代码存储在安全位置。您可以打印、复制或下载恢复代码。此外，您还可以将恢复代码存储在易于访问的云存储位置，如下所示：
Dropbox
iCloud
Google 云端硬盘
您可以使用密码管理器，如下所示：
Lastpass
1Password
检索并保存恢复代码
如果您在设置验证方法时未保存恢复代码，则可以随时进行检索。您必须登录 Shopify 账户才能检索您的恢复代码。
步骤：
在 Shopify 后台，点击您的用户名和账户图片。
点击管理账户 > 安全。
在两步验证部分的保存恢复代码下，点击查看代码。
可选：如果您之前使用了全部 10 个恢复代码，请点击生成新代码。
请执行以下任一操作：
若要打印恢复代码的 PDF 或硬副本文件，请点击打印代码。
若要将恢复代码复制并粘贴到电子文档中，请点击复制代码。
若要将恢复代码下载到您设备上的 txt 文件中，请点击下载代码。
将您的恢复代码保存在安全位置。
Shopify商户官网原文详情：
Add a backup authentication method
After you've set up your primary method of two-step authentication, you can set up one or more alternate authentication methods as backup. This is useful when your primary authentication method is unavailable.
Steps:
From your Shopify admin, click your username and account picture.
Click Manage account > Security.
In the Two-step authentication section, click Add a backup method
Select one of the following options:
Authenticator app
Security key or Biometrics
Backup phone
Click Next.
Set up the backup two-step authentication according to the method that you selected.
Optional: Set up another backup method using this procedure.
Save your recovery codes in case you lose access to your mobile device. Make sure that you store them in a safe location offline that you can access in multiple ways, such as from your mobile device, your desktop computer, and from a printed document.
The next time you log in to your Shopify admin, you can select which authentication method to use.
Two-step authentication recovery codes
When you set up a two-step authentication method, you have the opportunity to save ten recovery codes and store them in a safe place. Recovery codes enable you to access your Shopify admin if any other authentication method is not available. For example, if you don't have access to your mobile device, then you can use one of your recovery codes to log in to your account if it has two-step authentication enabled.
Make sure that you store your recovery codes in a safe place. You can print, copy, or download the recovery codes. In addition, you can store your recovery codes in a cloud storage location that you can access easily, such as the following:
Dropbox
iCloud
Google Drive
You can use a password manager such as the following:
Lastpass
1Password
Retrieve and save your recovery codes
If you didn't save your recovery codes when you set up your authentication method, you can retrieve them at any time. You must be logged in to your Shopify account to retrieve your recovery codes.
Steps:
From your Shopify admin, click your username and account picture.
Click Manage account > Security.
In the Two-step authentication section, under Save your recover codes, click View codes.
Optional: If you've used all ten of your recovery codes previously, then click Generate new codes.
Do any of the following:
To print a PDF or hard copy of the recovery codes, click Print codes.
To copy and paste the recovery codes into an electronic document, click Copy codes.
To download the recovery codes to a txt file on your device, click Download codes.
Store your recovery codes in a safe place.
文章内容来源：Shopify商户官方网站
