SP API access to generate reports

Try to build application with usage custom library: https://sp-api-docs.saleweaver.com/ For Amazon SP API https://developer-docs.amazon.com/sp-api/docs Add user. Policies to user. Add Role. Policies to role.

And for this get sts credentials [ AccessKeyId, SecretAccessKey, SessionToken ]:

Then go to oauth to receive [ access token ]

Then get raport model for postman: https://github.com/amzn/selling-partner-api-models

Add access token from o-auth. Im not shure then access token key must be named "x-amz-access-token" Find this in tutorial: https://m.media-amazon.com/images/G/01/spapi/Call_SPAPI_Endpoint.mp4

Fill credentials [ AccessKeyId, SecretAccessKey, SessionToken ] :

And finaly receive:

        {
            "code": "Unauthorized",
            "message": "Access to requested resource is denied.",
            "details": ""
        }

Is any other service to rule access the selling partner reports ?