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User flows in Azure AD
I am trying to use a self-service sign-up user flow in Azure AD to use custom attributes. I have configured the identity providers, custom attributes, and application in the user flow: Y...
In Azure AD B2C, defining custom attributes within the tenant does not automatically surface them in the self-service sign-up experience. To ensure these attributes are available to end users, the corresponding user flow must be explicitly configured to collect them.
Configuration Checklist for Custom Attributes in User Flows
- Create the custom attribute
- Custom attributes are defined in the Azure AD B2C extensions application.
- Add the attribute to the user flow
- Navigate to the relevant Sign-up and sign-in user flow.
- Under User attributes, select the custom attribute(s) to be collected.
- Confirm that each attribute is marked as Collect attribute rather than only Return claim.
- Verify application configuration
- Ensure that the application is correctly linked to the user flow.
- The sign-up form will only display attributes if the application is invoking the correct policy/user flow endpoint.
- Test with a new account
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- If an account has already been registered with the same email, the flow may bypass attribute collection. Use a fresh account to validate the configuration.
https://learn.microsoft.com/en-us/azure/active-directory-b2c/user-flow-custom-attributes?pivots=b2c-user-flow