Passwordless login: You need to enable Identifier First and assign at least one application to try this connection

[artak]

we have login with phone number experience on the mobile side, it worked but suddenly stopped working, users not reeving code, direct call to twilio api works, also when I want to test from auth0 dashboard, input filed is disabled and there is text “You need to enable Identifier First and assign at least one application to try this connection.”

I saw similar post "You need to enable Identifier First and assign at least one application to try this connection." - #3 by rueben.tiow but still not clear what I have to change.

Thank you

[marcelina.barycka]

Hi and welcome to Auth0!

Identifier First flow allows users to first provide their identifier and on a second screen to provide credentials (code received via sms / email).

To set it up, please go to your Auth0 tenant → Authentication → Authentication Profile → and select Identifier first. Thanks!