Explore Business Central API through Postman using AAD Authentication | CloudFronts

Explore Business Central API through Postman using AAD Authentication

Posted On June 10, 2018 by Anjali Hemmadi Posted in


In this article, we will walk through steps on how to authenticate Business Central API using AAD Authentication in Postman


  1. Business Central account
  2. Admin Access in Azure Portal

Business Central API AAD authentication in Postman:

  1. In Postman, make a GET request to Business Central base API URL.
    Base URL: https://api.businesscentral.dynamics.com/v1.0/api/beta
    For using successful authentication, we need to add domain name or tenant ID
    Domain URL: https://api.businesscentral.dynamics.com/v1.0/myusersdomain.com/api/beta
  1. In Azure Active Directory, create a new Web API Type application registration.
    1. Sign On URL: https://www.getpostman.com/oauth2/callback
    2. Reply URL: https://www.getpostman.com/oauth2/callback
    3. Required Permission: Dynamics 365 (Note: If you are not able to find Dynamics 365 under the required permission, type Dynamics in Search bar on required permission section. Also, remember to Grant Permission to Application(requires Admin permission))
    4. Under the Keys section, add new Key and Save. Copy the Generated Key as it will not be visible later.
  2. Now in Postman authorization tab, select OAuth 2.0 in Type. Provide following details
    1. Give a Token Name
    2. Call back URL: https://www.getpostman.com/oauth2/callback
    3. Auth URL: https://login.windows.net/myuserdomain.com/oauth2/authorize?resource=996def3d-b36c-4153-8607-a6fd3c01b89f
    4. Access Token URL: https://login.windows.net/myuserdomain.com/oauth2/token?resource=996def3d-b36c-4153-8607-a6fd3c01b89f
    5. Client ID: (Application ID of Azure Application)
    6. Client Secret Key: Paste the Key copied in step 2.d
    7. Grant Type: Authorization Code
    8. Untick Request Token locally
  3. Click Request Token and then Use Token. If the token is successfully generated, then you will see Authorization Code under Header section in Postman
  4. Now Click send.

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