How can I change the userName attribute of an existing User to display like userName@DomainName?

Hi All,
I am looking for some help to change the userName attribute of an User to get displayed like UserName@DomainName (Something near match like Email) for a SAML App . I can’t use mapping of emailAddress . Please suggest if i can pick userName attribute by any means and operate on it to fulfil my requirement ?.

Thanks
Sandeep.

If I am understanding correctly, you want to transform userName to userName@domainname.

You can probably use auth0 actions or rules on post-login and transform the userName ending with domain name.

Thanks @sumansaurav . That Helps .

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