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Get email address in SAML NameID



I want a user’s email address to appear in the SAML NameID field. However, the default value for this seems to be the Auth0 ID. How do I change it?

I’ve tried the following SAML settings but it doesn’t affect this at all:

  "mappings": {
    "user_id": ""
  "nameIdentifierFormat": "urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress"