Auth0 Yahoo social connection is using OAuth1.0 flow and this seems to be broken on Yahoo end. Other people using Yahoo OAuth are reporting similar problems over the last few days: E.g.; https://twitter.com/buxfer/status/1029427896509591553
We have an alternative solution which uses OAuth2 flow. From the dashboard, it isn’t possible to set it but using the management API you could update.
I’ve outlined the steps below;
1- Using fetch all the connections API get all the connections and find the Yahoo from the returned list.
2- Patch the connection for Yahoo adding
protocol:'oauth2' in the
Make sure to copy the entire options attribute (the API only patches the first level, you need to set all the attributes inside options to avoid it to be overridden)
"client_id": "...", // replace with your app credentials
... // any other attribute in options