Azure Functions
An Azure service that provides an event-driven serverless compute platform.
5,932 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(304, 55.00000000000001%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVN%3C/text%3E%3C/svg%3E)
I'm also getting the same error.
Unable to Subscribe to EventGrid Domain using C# Function App
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(44.800000000000004, 94%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAJ%3C/text%3E%3C/svg%3E)
Aaron Joseph
11
Reputation points
I am trying to subscribe a function in an isolated function app to an event grid domain and am receiving the following error:
{\"status\":\"Failed\",\"error\":{\"code\":\"ResourceOperationFailure\",\"message\":\"The resource operation completed with terminal provisioning state 'Failed'.\",\"details\":[{\"code\":\"Endpoint validation\",\"message\":\"Destination endpoint not found. Resource details: #######. Resource should pre-exist before attempting this operation. Activity id:884b1adf-58de-48e7-999a-ebe4dc4b3f01, timestamp: 8/17/2022 2:34:37 PM (UTC).\"}]}}",
This error is occurring both when trying to add the subscription using the Fluent SDK and via the Azure web portal.
I have verified that the function app is running and that the function is visible.
Any help would be appreciated.
Azure Functions
Azure Event Grid
Azure Event Grid
An Azure event routing service designed for high availability, consistent performance, and dynamic scale.
456 questions
{count} votes
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(0, 59%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJM%3C/text%3E%3C/svg%3E)
JananiRamesh-MSFT 29,276 Reputation points2022-08-24T04:21:59.263+00:00 Working with @Aaron Joseph and will share the update
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JananiRamesh-MSFT 29,276 Reputation points
2022-09-01T05:38:28.243+00:00 Hi @AaronJosep-9110
Following up to see if the issue still exists, If yes please share me the requested information to investigate further.
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2 answers
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James Jackson 1 Reputation point2022-09-11T13:56:52.1+00:00 Can confirm I am also seeing this issue, either when creating the Event Subscription via Portal or through Terraform.
Occurs when the Topic is assigned a Managed Identity with Contributor access over the Resource Group, and Storage Queue Data Contributor and Storage Queue Data Message Sender roles over the target Storage Account.
Please advise if you would like any followup information.
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James Jackson 1 Reputation point
2022-09-11T20:33:11.153+00:00 I was able to resolve this issue. The cause was the Storage Account firewall/network configuration.
With the firewall adjusted to allow connections by default, or "Azure trusted services" granted bypass privileges, this error disappeared.
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