Decline events occurring during Out Of Office period is broken in Automatic replies feature

Hello @Devesh Karna,  

Thank you for reaching out to the Q&A forum! 

After receiving your information, I tested this scenario again in my own environment together with a colleague. I set my Out of Office period from February 25 to February 27. 

My colleague sent me two meeting invitations: 

• A meeting scheduled on February 26 (within the OOO period) 
• A meeting scheduled on February 28 (outside the OOO period) 

In my case, Outlook automatically declined only the meeting on February 26, which is expected behavior.  

For the meeting on February 28, I remained correctly scheduled, and my colleague did not receive a decline notification. 

I’ve also checked the Microsoft 365 Service Health Dashboard, and currently there are no reported incidents or advisories related to this behavior.   

Because of this, could you please try testing one more time on your side to see whether the issue still occurs? 

If the issue continues, I believe your case may require deeper investigation by Microsoft’s higher technical support team, as they have access to backend diagnostic tools and tenant‑level data that are not available at the tenant level.   

I also noticed that you selected the Business tag for this question, so if this is indeed a work account, I highly recommend you contact your IT admin to raise a support ticket with Microsoft’s higher‑level technical team as soon as possible.    

• To create a Support ticket, they can go to: Microsoft 365 admin center                          
• When they click Help & Support in the bottom-left corner, a Support Assistance panel will appear.              
• In the text box, they can type: "request an agent to contact me via email or phone" and press Enter.              
• After that, please look at the bottom-left corner of the panel. They will see a blue link that says, "Contact Support"; they click on it. 

• They will then have two options: Support via phone or via email. They can choose Email. 

• Fill all the information in this contact support details. Please describe your situation carefully so they will have enough information to help you.     
• Finally, clicking on "Contact me"     

Please follow this article: Get support - Microsoft 365 admin | Microsoft Learn  

After completing them, you will receive an email appointment for a meeting to review this issue professionally together.   

When the ticket is opened, a support engineer will be able to start a remote session to investigate the issue, review the back‑end settings, and, if needed, run synchronization or diagnostic tools to fix the problem.  

I apologize for redirecting you to the support team. As forum moderators, I have limited access to backend systems and cannot directly investigate device-level issues.            

I truly hope you’ll be assisted soon by our dedicated technical team. And if you receive any updates or insights, please feel free to reply here.                  

Looking forward to hearing from you! 

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