Account linking extension not linking two accounts with same email

Knowledge Solutions
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1

Problem statement

We are using the Account Linking Extension and are having issues linking two accounts that have the same email address.

Cause

  • Currently, the Auth0 Account Linking Extension (both in Rules and in the back end) searches for identities with the same email address with the GET /api/v2/users-by-email endpoint. While this endpoint is very efficient, the search it performs is case-sensitive .

This could be a problem for some Enterprise identity providers that provide the email address in a capitalized form (e.g. John.Doe@acme.com instead of john.doe@acme.com ).

Solution

At the moment, this is a limitation of the Auth0 Account Linking Extension, though there is a backlog item to address this issue.