Azure Function is not triggered when a message added in Queue which are configured in VNET

Kaipa Venkata Sreedhar Reddy 0

Hi Team,

I have a function hosted in azure which needs to be triggered when a new message enters in message queue. but the function is not triggering. Both Function and Storage account are in VNET.

Khadeer Ali 1,400 Reputation points Microsoft Vendor

2024-12-16T23:35:31.3233333+00:00
Hi @Kaipa Venkata Sreedhar Reddy ,

Welcome to the Microsoft Q&A Platform! Thank you for reaching out regarding your query on Azure Function which is not triggered when a message added in Queue which are configured in VNET.

To assist you better with the issue where your Azure Function is not triggered by the message queue, could you please provide more details on the following points?

Are the Function App and Storage Account connected using the same Virtual Network, or are you using private endpoints for the Storage Account?

Have you checked the Function App logs or Application Insights? If yes, are there any error messages or warnings related to the queue trigger?

How is the Function App's connection to the Storage Account configured? Are you using a valid connection string or managed identity with the required permissions?

Does the Storage Account have any firewalls or network restrictions enabled? If yes, is the subnet for the Function App included in the allowed network list?

Does the Function App trigger work correctly if the Storage Account is temporarily removed from the Virtual Network?
Kaipa Venkata Sreedhar Reddy 0 Reputation points

2024-12-17T00:03:32.41+00:00

Hi Khadeer,

Thanks for reaching out.

Both the function app and blobstorage are configured in same VNET and also private endpoints are also created. The function itself is not triggered to see any logs. I am using connection string to connect with storage account in function. As far as I see there are no firewalls enabled only subnets are configured. All the subnets are internal to company.Even if I enable public permission on storage account the function is not triggered.
Shireesha Eeraboina (Quadrant Resource LLC) 570 Reputation points Microsoft Vendor

2024-12-18T04:54:29.3433333+00:00

Hi @Kaipa Venkata Sreedhar Reddy ,

I wanted to follow up and see if you’ve had an opportunity to review my previous message and share the requested details. Having this information will help us assist you more efficiently.

Thankyou.
Shireesha Eeraboina (Quadrant Resource LLC) 570 Reputation points Microsoft Vendor

2024-12-19T07:26:40.2433333+00:00

Hi @Kaipa Venkata Sreedhar Reddy ,

Following up to see if the above answer was helpful. If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know.

Thankyou.

1 answer

Shireesha Eeraboina (Quadrant Resource LLC) 570 Reputation points Microsoft Vendor

2024-12-17T05:18:27.77+00:00

Hi @Kaipa Venkata Sreedhar Reddy ,

It seems like your Azure Function isn't triggering because of some network or configuration issues. First, ensure that your Function App and Storage Account are correctly integrated with the VNET and private endpoints are properly set up.

Check the DNS settings to ensure they resolve the private endpoints. Make sure the Function App has the right permissions to access the Storage Account. Enable diagnostic logs in your Function App to capture any errors.

Also, review the Network Security Groups (NSGs) to ensure they allow the necessary traffic. Finally, double-check the connection string in your Function App to make sure it points to the private endpoint of the Storage Account

Hope this helps, do let me know if you have any further questions.

Thankyou.
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Azure Function is not triggered when a message added in Queue which are configured in VNET

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