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How to Fix Yammer REST API No-Access Error for Storyline Posts

Aamir Naveed Akram Oct 7, 2026 869 views

Question details

The user needs to resolve a no-access error when attempting to programmatically create a Yammer or Viva Engage Storyline post using the REST API.

How to Fix Yammer REST API No-Access Error for Storyline Posts

Product: Yammer / Viva Engage
Device & OS: not provided
Scenario: Attempting to create a Storyline post automatically via the REST API.
Observed behavior: The Yammer messages endpoint returns a no-access error, preventing the application from creating the post.

Before you start

Ensure you have your REST API request payload, error response codes, and Azure Active Directory application permissions ready before seeking developer support.

Solution 1Recommended

Seek Expert Developer Guidance on Microsoft Q&A

Since standard community forums lack specific API troubleshooting expertise, posting in the dedicated Microsoft Q&A forum is the most effective way to resolve endpoint authorization errors.

The standard Microsoft Community forum has limited expertise regarding REST API and Viva Engage endpoint issues. To diagnose complex authentication or no-access errors, you need to engage with developers and engineers directly.

Navigate to Microsoft Q&A

Open your browser and go to the official Microsoft Q&A website (learn.microsoft.com/en-us/answers).

Sign in to your account

Ask a new question

Click on the 'Ask a question' button. Provide detailed information about the endpoint you are calling and the exact no-access error payload.

Apply relevant tags

In the tags section, add 'Yammer', 'Viva Engage', and 'Microsoft Graph' to ensure the right API experts review your issue.

Seek Expert Developer Guidance on Microsoft Q&A

Provide Detailed Context: Always include your HTTP request headers (excluding actual bearer tokens) and parameter details to help Microsoft experts diagnose your permission scopes quickly.

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Frequently Asked Questions

Why am I getting a no-access error on the Yammer messages endpoint?

This error typically occurs due to insufficient permissions in your OAuth token, missing API scopes in your Azure AD application registration, or trying to post on behalf of a user without appropriate delegation.

Can I use Microsoft Graph API instead of the Yammer REST API for Storyline posts?

Yes, Microsoft is actively integrating Viva Engage and Yammer capabilities into the Microsoft Graph API. It is highly recommended to check the latest Graph API documentation, as it often provides a more modern and secure way to create posts programmatically.

Where can I find the official documentation for Yammer REST API endpoints?

The official API documentation is hosted on the Microsoft Learn platform. You can find it by searching for Viva Engage (formerly Yammer) developer documentation.

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