Since your code fails at authentication and the error was "unauthorized for this grant type", I guessed that your app platform type is not password flow type. The sample code in the message store export is using username and password to authenticate. So login your developer portal and open your app settings to check the platform type. If it's not Server only/ No UI type, then create a new app with that type and retry. Remember also, in order to export the message store, you need to authenticate the app with a user with the super admin role.

For your other observation, there is nothing to do with the Engage Digital so it should not be related. You can also search for "unauthorized for this grant type" from the community to see previously questions and answers.

Hi Phong,

This is the setting I have set for the app:

I've also tried the 3-legged option as well with the "Server-side web app" option selected but I get an Error HTTP 400.

This is my code for reference:

from ringcentral import SDK

import json



with open('rc-credentials.json') as data_file:

    data = json.load(data_file)





CLIENTID = data['RINGCENTRAL_CLIENTID']

CLIENTSECRET =  data['RINGCENTRAL_CLIENTSECRET']

SERVERURL = data['RINGCENTRAL_SERVER']

RCUSERNAME = data['RINGCENTRAL_USERNAME']

RCEXTENSION = data['RINGCENTRAL_EXTENSION']

RCPASSWORD = data['RINGCENTRAL_PASSWORD']





rcsdk = SDK(CLIENTID, CLIENTSECRET, SERVERURL)

platform = rcsdk.platform()

platform.login(RCUSERNAME, RCEXTENSION, RCPASSWORD)

response = platform.post(f'/restapi/v1.0/account/705444005/message-store-report', {

        'dateFrom': '2021-12-01',

        'dateTo': '2021-12-30',

        'messageType': ['VoiceMail']

    })

Hello,

I've found the issue! The dateTo/From had to be in this format:

2019-07-31T20:01:58Z

I get a successful call to the API now. Thank you!