Getting message as unauthorized for create a score via API

[nirodhasheran]

I have requested the assignments Create, Get, Update. ( Line Items - Canvas LMS REST API Documentation). The response was successful. 
But it's getting below response when requesting the 'create a score route'. (Score - Canvas LMS REST API Documentation )

{

    "errors": {

        "type": "unauthorized",

        "message": "Insufficient permissions"

    }

}
I used the same access token which is not expired for all the above scenarios. 

Please advice!

[Chris_Hofer]

Hello  @nirodhasheran ...

I am not sure of an answer for you, but I wanted to let you know that I have shared your question with the Canvas Developers‌ group here in the Community in hopes that your question will get some additional exposure.  If you aren't yet following this group, please use the link that I've provided, and you'll see two buttons to click on: "Follow" and "Actions" >> "Join group".  I hope this will be of help to you.  I hope that you'll be able to find a solution.  Take care!