PayPal curl显示“权限不足”

Question

我正在尝试从Paypal处获取请求，以创建一个基于产品/订阅的平台。首先，我使用curl获得了访问令牌：

https://developer.paypal.com/docs/api/get-an-access-token-curl/

curl -v https://api.sandbox.paypal.com/v1/oauth2/token \
   -H "Accept: application/json" \
   -H "Accept-Language: en_US" \
   -u "CLIENTID:SECRETID" \
   -d "grant_type=client_credentials"

（出于保密目的，我只是拿出我的ID）

现在我去创建产品

https://developer.paypal.com/docs/api/catalog-products/v1/#products_create

运行命令后，我得到。

   {
    "name":"NOT_AUTHORIZED",
    "message":"Authorization failed due to insufficient permissions.",
    "debug_id":"2a8285dd8feeb",
    "details":
    [{"issue":"PERMISSION_DENIED",
    "description":
    "You do not have permission to access or perform operations on this resource."}],
    "links":[{"href":"https://developer.paypal.com/docs/api/v1/billing/subscriptions#NOT_AUTHORIZED","rel":"information_link","method":"GET"}]
   }

我的问题是我是否必须等待PayPal支持才能授予我的帐户授权，或者我自己可以解决这个问题？