Why does my PayPal sandbox app permissions authorization fails?

I'm getting error

[2024-07-31 10:49:37] INFO: Response from tracking information request: Array(    [errors] => Array        (            [0] => Array                (                    [name] => NOT_AUTHORIZED                    [message] => Authorization failed due to insufficient permissions                    [debug_id] => e5447f683bf65                    [details] => Array                        (                            [0] => Array                                (                                    [location] => body                                    [links] => Array                                        (                                        )                                )                        )                )        ))

while trying to create php code to send tracking information to PayPal using their tracking API: https://developer.paypal.com/docs/api/tracking/v1/

I doubled and tripled checked credentials. Do I need to create any kind of permissions for this to work?