# V7 Auth0.js Passwordless Auth Failed

**URL:** <https://community.auth0.com/t/v7-auth0-js-passwordless-auth-failed/7271>\
**Category:** Get Help\
**Tags:** passowordless\
**Created:** [June 27, 2017, 12:53am UTC](https://community.auth0.com/t/v7-auth0-js-passwordless-auth-failed/7271 "2017-06-27T00:53:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Makarand](https://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/User_font_awesome.svg/768px-User_font_awesome.svg.png) [@Makarand](https://community.auth0.com/u/Makarand)\
**Post date:** [June 27, 2017, 12:53am UTC](https://community.auth0.com/t/v7-auth0-js-passwordless-auth-failed/7271/1 "2017-06-27T00:53:46Z")

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Auth0 Passwordless Auth is failing with my account not sure what is the issue  
it throws error when I send the passcode  
{“error”:“unauthorized\_client”,“error\_description”:“Grant type ‘[http://auth0.com/oauth/legacy/grant-type/ro](http://auth0.com/oauth/legacy/grant-type/ro)’ not allowed for the client.”,“error\_uri”:“[Application Grant Types - Auth0 Docs](https://auth0.com/docs/clients/client-grant-types)”}

All was working well and tested until few days ago,  
I dont see the grant types either let know how can I resove this issue  
Let know how can I fix this issue

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**Author:** ![prashantT](https://sea1.discourse-cdn.com/auth0/user_avatar/community.auth0.com/prashantt/32/6002_2.png) [@prashantT](https://community.auth0.com/u/prashantT)\
**Post date:** [July 6, 2017, 11:21am UTC](https://community.auth0.com/t/v7-auth0-js-passwordless-auth-failed/7271/2 "2017-07-06T11:21:09Z")

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As we move towards greater alignment with industry standard specs, some old endpoints and grant\_types are being phased out.

Passwordless connections should be implemented in the Hosted login page, as outlined in the Grant Types documentation:

> **[Application Grant Types](https://auth0.com/docs/get-started/applications/application-grant-types)**
>
> Describes grant types and how they relate to applications.

If you’d like to continue to use legacy grant types, you can enable them via the Management API. Note, this is only available for clients created prior to 8 June. This is also outlined in the document linked above.

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**Author:** ![system](https://global.discourse-cdn.com/auth0/original/3X/b/5/b560f266932fcce5d57f09a6595bd50518cae3f3.jpeg) [@system](https://community.auth0.com/u/system)\
**Post date:** [March 2, 2018, 5:54am UTC](https://community.auth0.com/t/v7-auth0-js-passwordless-auth-failed/7271/3 "2018-03-02T05:54:58Z")

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