Failed Exchange (feacft) until the client is saved through Auth0 Dashboard MANUALLY

[lambdalisue]

It seems clients created by Management API throw “Failed Exchange: Unauthorized” until the client has updated by Auth0 Dashboard. No data update is required for that. Clicking “SAVE CHANGES” just work.

What I mean is

1. Create a client through Management API
2. Create a connection through Management API
3. Create a user on the connection above through Management API
4. I cannot use the user above by “Failed Exchange: Unauthorized”
5. Open the client above in Auth0 Dashboard and click “SAVE CHANGES” without changing anything
6. Now I can use the user above

I think this issue is the same one as Failed Exchange - type: 'feacft' · Issue #62 · auth0/react-native-auth0 · GitHub

While we use client/connection to keep multi-tenancy, is there any way to avoid this issue without touching Auth0 Dashboard manually? I’ve tried a lot of types of updates through Management API but none worked. Only touching the client through Auth0 Dashboard manually worked.

[lambdalisue]

I’ve found. The reason is that token_endpoint_auth_method is missed when the client had created through Management API.

It seems the client created through the Management API miss some attributes.

The left-side is the client just after created through Management API and the right-side is just after updated through Auth0 Dashboard.

Note that Auth0 Dashboard still shows the client correctly like

So it’s nearly impossible to notice that the attribute is missing from the client.

[sanketrannore]

Thank you @lambdalisue , but i’m using Application type M2M as SPA doesn’t support Management apis . I’m not seeing Token Endpoint Authentication method , so how do i fix this issue