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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=https://login.microsoftonline.com/[Azure Tenant ID]/oauth2/authorize, resource_id=https://[Org ID].api.crm4.dynamics.com/
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

Patrick 

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