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How to Configure Azure AD B2C to always create a new contact record in Dynamics



I currently have a solution built where when a user registers in Azure AD B2C, if there is an existing contact record with the same email it will assign the external identity to the existing contact record. 


In our unique situation this is actually causing some issues and we need to update the system so that a new contact record is created each time a user registers through B2C, a new contact record will be created.


Does anyone have any ideas how this can be achieved? 

Resolver III
Resolver III


Can you check this Site Setting value: Authentication/UserManager/UserValidator/RequireUniqueEmail

You could create a plugin that swaps it on Create of External Identity record - if match, create new contact, assign the External Identity record to this new Contact etc.

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