I'm getting Delivery failed for my event subscription..

Hello Karthika,

It sounds like you're facing an issue with your event subscription for your Azure Function. A "Delivery failed" message typically indicates that there’s a problem with the endpoint or the way events are being routed. Here are a few steps you can take to troubleshoot this issue:

Verify the Endpoint: Make sure that the endpoint defined in your event subscription is correct and accessible. If it points to an Azure Function URL, ensure the function is deployed and running..

Check Azure Function Logs: Go to the Azure portal, navigate to your Azure Function, and check the logs. Look for any errors that might indicate why the function did not process the event correctly.

Authentication Issues: If your Azure Function is secured with authentication, ensure that the event subscription is correctly configured to include authentication headers required for access.

Message Retry Policy: Azure Event Grid has a built-in retry policy. If the initial delivery fails, it will attempt several retries before giving up. Check the retry logs in your Event Grid to see if any retries were made.

1. Event Schema: Ensure that the Azure Function can properly handle the schema of the incoming events. If the function expects a specific format, verify that the events being sent match that.

If you've gone through these steps and are still facing issues, please let me know! A few follow-up questions could help narrow it down:

• What type of event are you trying to subscribe to?
• Have there been any recent changes to the Azure Function or the event subscription configuration?
• Are there any specific error messages in the Azure Function logs that you can share?

Hello Karthika,

We haven’t heard from you on the last response and was just checking back to see if you have a resolution yet. In case if you have any resolution please do share that same with the community as it can be helpful to others. Otherwise, will respond with more details and we will try to help.