Unable To Retrieve Given Name From User During Rule Flow

The customer is not able to retrieve the family_name attribute from their google enterprise connection. In google side they see the following:

{

[...]

"id": "<ID>",

"primaryEmail": "<PrimaryEmail>",

"name": {

"givenName": "<GivenName>",

"familyName": "<familyName>",

"fullName": "<fullName>"

},

But when trying to manipulate one of the passed values from their IdP (family_name) they get the following error (in the tenant logs):

{
[...]
  "type": "f",
  "description": "Family name not set in IDP response.",
[...]
}

Symptoms
The Application flow fails in the rules flow as the family_name field does not exist

• Rules

Based on the engineers response, this seems to due to a wrong mapping in the google-apps strategy on our end.

https://github.com/auth0/auth0-server/blob/master/packages/server/lib/auth/strategies/google-apps.js#L20

Troubleshooting
Logs found:

{
[...]
  "type": "f",
  "description": "Family name not set in IDP response.",
[...]
}

They are receiving the previously mentioned error because of a validation they have in their rules, which is done to proof that the family_name is not being handled:

if ( typeof( user.family_name ) === "undefined" ) {

return callback( new Error( 'Family name not set in IDP response.' ));

}