No, it is not possible to convert a B2C tenant to a B2B tenant, you would need to recreate the tenant.
Converting an Azure AD B2C tenant to a regular Azure AD tenant?
Is it possible to convert or migrate users from an Azure AD B2C tenant to a regular Azure AD tenant? With the "External Identities" feature now in regular Azure AD, we don't have the need to be a B2C tenant anymore & would like to be able to use features more readily available in a regular tenant, such as App Roles.
Microsoft Security | Microsoft Entra | Microsoft Entra External ID
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Sam Cogan 10,812 Reputation points Microsoft Employee Volunteer Moderator
2021-06-10T08:45:49.397+00:00
1 additional answer
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Siva-kumar-selvaraj 15,721 Reputation points
2021-06-10T10:13:48.5+00:00 Hello @Katie P ,
Converting a B2C tenant to Azure AD is not possible, but alternatively for user recreating , you could leverage "Bulk operations" to download and create users profile as per this article: https://learn.microsoft.com/en-us/azure/active-directory/enterprise-users/users-bulk-download
Hope this helps.
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