Cannot use Slack oauth.v2 endpoints

[joffreyvillard]

Description

When configuring a "Custom Social Connection" for Slack, using oauth.v2 URLs brings in the end the following error (Slack side):

Invalid permissions requested
Invalid scopes: identity.basic, identity.email

As noticed elsewhere (e.g. https://stackoverflow.com/questions/61150208/sign-in-with-slack-invalid-scopes-identity-basic-identity-avatar), scope parameter should be passed under the user_scope name (see also https://api.slack.com/docs/sign-in-with-slack#sign-in-with-slack__details__set-up-your-sign-in-with-slack-button - where the example is correct but the table is not!)

Would it be possible to customize the name of this parameter from the UI?

Reproduction

Set a "Custom Social Connection" with the following elements:

Clicking on "Sign in with Slack" on the login page ends up with the following error:

Environment

The one directly available via the Extensions in Auth0.

[TiboC]

I am interested too.

[theterra]

+1

[kartikay18]

Has there been any update to this? I am facing the same issue.

[arellaTV]

In case it helps anyone, I solved this issue by manually updating the social connection with the Management API.

I did a PATCH /api/v2/connections/{id} with the following body:

{
  "options": {
    "scope": "{INSERT_SCOPES}",
    "icon_url": "https://cdn.auth0.com/marketplace/catalog/content/assets/creators/slack/slack-avatar.png",
    "tokenURL": "https://slack.com/api/oauth.v2.access",
    "client_id": "{INSERT_CLIENT_ID}",
    "authParams": {
      "user_scope": "{INSERT_USER_SCOPES}"
    },
    "client_secret": "{INSERT_CLIENT_SECRET}",
    "authorizationURL": "https://slack.com/oauth/v2/authorize"
  },
  "is_domain_connection": false
}

The authParams parameter should let you add the user_scope property. Make sure you also update your fetchUserProfileScript either through the API or through the dashboard.