There are two methods of configuration:
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Express: Use this method in environments where the same person performs the roles of a backup administrator, an Office 365 administrator, and an Azure administrator.
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Custom: Use the custom configuration method for any of the following reasons:
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You do not want to use the Office 365 global administrator account.
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You have MFA enabled for the global administrator account, which is not supported in the express configuration.
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In your organization, a different person performs the role of either a backup administrator, an Office 365 administrator, or an Azure administrator.
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