Passwordless api flow problem

Per this doc: Embedded Passwordless Login in Regular Web Applications, I am trying to use the api passwordless flow.

The thing is, it’s working perfectly in two tenants I’d previously created.

Upon trying to get it to work in a new (third) tenant, I keep getting the error message:

Something Went Wrong
The link must be opened on the same device and browser from which you submitted your email address.

As I understand it, this error message should only occur when you’re using auth0’s login interface via Universal Login.

That is not what we’re doing AND the api passwordless flow is working just fine on the other tenants.

I am wondering if something has changed when creating a new tenant that is breaking this use of passwordless.

Hi @devrel,

Welcome to the Auth0 Community!

I’ve checked your tenant settings, and in one of them, you are missing in Advanced Settings Passwordless OTP Grant type, which is necessary for Passwordless to work correctly.

Embedded Passwordless Login in Regular Web Applications.

Please let me know if you have any questions or need further assistance.

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