Showing results for 
Search instead for 
Did you mean: 
Regular Visitor

Get data from CDS via REST - Authentication error in combination with Azure AD

Hi everybody,

I've got a problem with getting data from Common Data Service and do really not know anymore how to continue. Propably it is really simple and I just forgot one small step, but I cannot find good documentation on my error.


I want one of my company's programs to access data stored in a custom CDS entity. I try to recreate every step here, so maybe there you can find the problem.

1. I created the custom entity

2. I registered an app in Azure Active Directory and gave it permissons (Attachment 1)
3. I try to test the API via Postman. First I obtain the Access token (Att. 2)

4. I use the GET Call with the generated Token (Att. 3)


As a result, I get the HTTP response 401 - Unauthorized with following Header:


Content-Type →text/html
Server →
WWW-Authenticate →Bearer error=invalid_token, error_description=Error during token validation!, authorization_uri=[Azure Tenant ID]/oauth2/authorize, resource_id=https://[Org ID]
x-ms-service-request-id →...
REQ_ID →...
x-authentication-ticketid →...
Date →Thu, 29 Nov 2018 08:44:14 GMT
Content-Length →49


I think the problem is, that I have to give the Azure App ID to the CDS, but I'm really stuck and don't know where to do it. I cannot add Application IDs to the Security Users.


Any pointers or solution would be greatly appreciated.


Best regards


Helpful resources


Demo-Extravaganza 2020

Check out these cool Power Apps & vote on your favorite!


Robotic Process Automation

Let's talk about the solution provided by Microsoft for Robotic Process Automation (RPA)


Community Highlights

Check out whats happening in Power Apps


Community User Group Member Badges

FIll out a quick form to claim your community user group member badge today!


Power Platform 2020 release wave 2 plan

Features releasing from October 2020 through March 2021

Users online (9,106)