Yammer API with AAD tokens Postman Collection

Published Oct 14 2019 12:35 PM 29.8K Views

We’re excited to inform that all Yammer v1 APIs now support the usage of Azure Active Directory (AAD) tokens. This is a critical step in Yammer’s authentication journey across web, mobile and platform to fully use AAD tokens instead of the Yammer OAuth token.


In this blog, we’d like to share steps for creating an AAD app, and visualizing Yammer API responses via the Postman client with AAD tokens.


Download the Postman Collection here.


1. Register a new app in Azure Active Directory

Go to https://portal.azure.com and register a new application.


Registering an app in AADRegistering an app in AAD


2. Get app registration details

Copy the Client ID and Secret, and set the Redirect URI to https://www.getpostman.com/oauth2/callback

App registration detailsApp registration details


3. Endpoints

Copy the OAuth 2.0 endpoints from the Azure portal to input into Postman

OAuth 2.0 endpoints for PostmanOAuth 2.0 endpoints for Postman


4. Request Yammer API permissions

Choose Yammer from the list of API permissions

Request API permissionsRequest API permissions


6. Enable Delegated permissions

Choose Delegated permissions and user_impersonation. Application permissions are currently not supported and we’re planning on addressing that limitation.

Delegated permissionsDelegated permissions


7. Yammer permission is added

Yammer is added with a user_impersonation scope

Delegated permissionsDelegated permissions


8. Generate a new client secret

Generate a new client secret and choose to refresh the secret every year, every two years, or never

App secretApp secret


9. Get Postman ready

Import the Yammer API collection into Postman

Import API collection into PostmanImport API collection into Postman


10. Enter Azure Active Directory Token details

Get the details from the Application Overview page for your app and endpoints and input into Postman and request token. Here's the fields:

Callback URL: https://www.getpostman.com/oauth2/callback

Auth URL: https://login.microsoftonline.com/organizations/oauth2/v2.0/authorize

Access Token URL: https://login.microsoftonline.com/organizations/oauth2/v2.0/token

Client ID: Your Client ID

Secret: Secret that was generated in step 8

Scope: https://api.yammer.com/user_impersonation

Getting AAD Access tokenGetting AAD Access token


11. Consent permissions

Consent permissions on behalf of your organization

Authorize permissionAuthorize permission


12. Generate AAD Token

Generate and use your new AAD token. Token lifetime is 60 minutes.

Get AAD access tokenGet AAD access token



13. Set variables in Postman

So you don't have to repeat typing, set a variable with the Yammer API URI prefix. Set yamURI to https://www.yammer.com/api/v1/

Set API variableSet API variable


14. Select update and you are ready

Postman is now ready to make requests to Yammer API endpoints using Azure Active Directory tokens.


As Yammer integrates further into Microsoft 365, we’re excited for additional platform opportunities through the Azure Active Directory - this is just the beginning. We’re interested in all your feedback so be sure to comment on this blog or join us on the first Wednesday of every month in the Monthly Yammer Platform and API Office Hours.



Really great stuff, thanks! It would be great to have lots of these calls in the Flow Connector as well. Shouldn't be really hard to transition this to the Flow Connector. :smile:


CC @Stephen Siciliano 

Occasional Contributor

Nice to hear about this Yammer api integration.

Occasional Visitor

Hi @Sameer Sitaram


 We always get 401 authentication failure When we try to access Yammer API using AAD token.


We followed the same process you have mentioned here.


Please help




Regular Visitor

Is there a way to set the Javascript Origins when using AAD Tokens?

Frequent Contributor

Hello @Sameer Sitaram , 


Thanks for the very detailed steps. I have understood and followed the below steps - But, I am getting the error - "Credentials are required to access this resource" when uploading the attachments to yammer using the given REST api.


1) Created App & Configured Delegate permissions (Hope, Admin Consent is not required for the App)

2) Configured the scope as "https://api.yammer.com/.default" and generated the Access Token


We used this access token in a Flow to post attachment in a Yammer community. But, we got the error "Credentials are required to access this resource"


Also, I tried changing the scope to "https://api.yammer.com/user_impersonation" as given in the article and tried to generate the access token, But, i got the error - "Error: AADSTS70011: The provided request must include a 'scope' input parameter. The provided value for the input parameter 'scope' is not valid. The scope https://api.yammer.com/user_impersonation is not valid."


I think i might be making some mistake somewhere in the above steps - Can you please let me know if any configuration above has to be changed?


Thanks & Regards,


Occasional Contributor

@Sameer Sitaram Is the api@yammer.com working? I am getting the following error


Delivery has failed to these recipients or groups:

The format of the email address isn't correct. A correct address looks like this: someone@example.com. Please check the recipient's email address and try to resend the message.


Occasional Visitor


How can we renew the token automatically when access token is invalidated after 60min? I don't see any refresh token to do that.

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