Destination SDK Failing because of invalid Auth token(Authencation Failed)

we are trying to create a destination sdk to swoogo faccing issue which authentication type to use had tried OAuth 2 with Client Credentials Grant it is not working please suggest what kind of customerauthentication to be used for these destination .
below for swoogo request api token for refernce :
https://swoogo.readme.io/reference/post_oauth2-token
Swoogo Api:
https://swoogo.readme.io/reference/updatecontact
these was used in our config json it was not working:

 "customerAuthenticationConfigurations": [

   {

      "authType": "OAUTH2",

      "grant": "OAUTH2_CLIENT_CREDENTIALS",

      "accessTokenUrl": "https://api.swoogo.com/api/v1/oauth2/token",

      "clientId": "XXXXX",

      "clientSecret": "XXXXXXXXXXXXXX",

      "options": {

        "useBasicAuth": true

      }

    }  

  ],