403: User not registered in the Developer Dashboard

[jessieryanmusic]

Hello Spotify Community !

I'm making a react-native app, I'm using the Authorization Code Flow & and I'm on Development mode with only one user added in "Users and access": My tester, who is a part of my Spotify Premium Duo. 

The app is working fine on my part, but my tester can't see anything related to her account. The /me endpoint is sending a 403 error with this message in the body : User not registered in the Developer Dashboard. Top Tracks / Top Artists endpoints are working fine with her Access Token.

I can't see any email on her Spotify account, but can't change anything because it is linked to her Facebook account. I'm also logged in with my Facebook account but it's working fine, and I can see my details when fetching the /me endpoint with my access token. 

Any help will be appreciated ! 
Thank you in advance, 

Jessie

--------- 

Plan

Premium (DUO)

Country
FR
Device
Iphone 13 Pro

[Ximzend]

You have to fill in the email she uses with her Facebook account.

[jessieryanmusic]

I wasn’t clear apparently in my message but I did fill her email in my developer dashboard: her old and her new one to be sure. But it’s not working. 

[tintin10q]

Is it different when it is about a facebook account? You just add the facebook email right?

[jessieryanmusic]

There’s no difference I think. I added the email she’s using on her facebook account.