am trying to use linkedin API to make users share content from our platform to their profiles in LinkedIn, in the Documentation the API requires a user URN in the request body. But when i follow how to get it i see a legacy APIs shares/userId that seems do not work anymore ( They don't even provide an id to test the legacy API in the response)
I have this scopes email, openid, profile, r_ads, r_events, r_learningdata, r_liteprofile, r_marketing_leadgen_automation, w_member_social

I saw many people having the same problem but there is no response on the issue or any clarification

Endpoints a tried

1. https://api.linkedin.com/v2/userinfo
   
   Response:

{
    "sub": "XXX-XXXX",
    "email_verified": true,
    "name": "XXXX XXXXX",
    "locale": {
        "country": "FR",
        "language": "fr"
    },
    "given_name": "XXXX",
    "family_name": "XXXX",
    "email": "XXXXXX@gmail.com",
    "picture": "XXXXXXX"
}

2. https://api.linkedin.com/v2/me
   
   Response:.

{
    "localizedLastName": "XXXX",
    "profilePicture": {
        "displayImage": "XXXXX"
    },
    "firstName": {
        "localized": {
            "fr_FR": "XXXX"
        },
        "preferredLocale": {
            "country": "FR",
            "language": "fr"
        }
    },
    "lastName": {
        "localized": {
            "fr_FR": "XXXX"
        },
        "preferredLocale": {
            "country": "FR",
            "language": "fr"
        }
    },
    "id": "XXX-XXXX",
    "localizedFirstName": "XXXX"
}

No user URN returned in both

The URN refers to the ID returned from the https://api.linkedin.com/v2/me response OR the sub field from https://api.linkedin.com/v2/userinfo.