OfficeJs SSO getAccessTokenAsync returns error cod

Question

I have followed all steps but I had some changes due to my unique setup.

I had unique setup where none of the services were hosted on azure so I used aws azure active directory integration. I used following tutorial to configure AWS Azure Active directory. I followed this tutorial to configure sso for my word addin

After following tutorial I got this below error

getAccessTokenAsync return

result = {
    status: "failed",
    error: {
        code: 7000,
        message: "You don't have sufficient permissions for this action.",
        name: "permission denied",
    }
}