Unable to delete vnet

Question

Unable to delete vnet

James Gibson 20

Unable to delete VNet and/or resource group because of AppServiceLink , but the app service is deleted.

Looks like https://learn.microsoft.com/en-us/answers/questions/656042/error-deleting-subnet-serviceassociationlinks-apps but I can't do the workaround because I don't know what the app service plan and app service names were.

How can I delete this vnet?

 Resource
	/subscriptions/*****/resourceGroups/vnet-test2/providers/Microsoft.Network/virtualNetworks/jagvnettest2-vnet/subnets/WebAndApiOutbound
Operation name 
	Delete Virtual Network Subnet
Time stamp
	Mon Aug 21 2023 09:03:23 GMT+0100 (British Summer Time)
Event initiated by 
	***@****
Error code
	InUseSubnetCannotBeDeleted
Message
	Subnet WebAndApiOutbound is in use by /subscriptions/*****/resourceGroups/vnet-test2/providers/Microsoft.Network/virtualNetworks/jagvnettest2-vnet/subnets/WebAndApiOutbound/serviceAssociationLinks/AppServiceLink and cannot be deleted. In order to delete the subnet, delete all the resources within the subnet. See aka.ms/deletesubnet.

Deepanshu katara 17,960 Reputation points MVP Moderator

2023-08-21T09:13:00.5266667+00:00
Check for Deleted Resources: Ensure that there are no other resources or services that might still be referencing the app service or VNet. Even if the app service has been deleted, there could be other resources (like network interfaces, route tables, etc.) that are still linked to the VNet.

Clear Cached Data: Sometimes, cached data can cause issues with resource deletion. Clear the cache or try deleting the resource using a different web browser or an incognito/private browsing mode.
James Gibson 20 Reputation points

2023-08-21T10:28:22.2933333+00:00
I'm 99% sure there aren't any other resources in the vnet, the vnet is the only thing left in the resource group and I hadn't assigned any resources in a different resource group to the vnet.

That's interesting that browser cache could interfere with resource deletion, unfortunately I tried incognito mode and got the same error.
Bas Pruijn 956 Reputation points

2023-08-21T15:11:10.5133333+00:00

You could try to remove the resource group with a FORCE command using powershell

https://learn.microsoft.com/en-us/powershell/module/az.resources/remove-azresourcegroup?view=azps-10.2.0

You can run this command via the Azure Cloud Shell

Answer accepted by question author

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Deepanshu katara 17,960 Reputation points MVP Moderator

2023-08-21T09:13:00.5266667+00:00

Check for Deleted Resources: Ensure that there are no other resources or services that might still be referencing the app service or VNet. Even if the app service has been deleted, there could be other resources (like network interfaces, route tables, etc.) that are still linked to the VNet.

Clear Cached Data: Sometimes, cached data can cause issues with resource deletion. Clear the cache or try deleting the resource using a different web browser or an incognito/private browsing mode.
James Gibson 20 Reputation points

2023-08-21T10:28:22.2933333+00:00

I'm 99% sure there aren't any other resources in the vnet, the vnet is the only thing left in the resource group and I hadn't assigned any resources in a different resource group to the vnet.

That's interesting that browser cache could interfere with resource deletion, unfortunately I tried incognito mode and got the same error.
Bas Pruijn 956 Reputation points

2023-08-21T15:11:10.5133333+00:00

You could try to remove the resource group with a FORCE command using powershell

https://learn.microsoft.com/en-us/powershell/module/az.resources/remove-azresourcegroup?view=azps-10.2.0

You can run this command via the Azure Cloud Shell

Answer 1

TP 145.8K Volunteer Moderator

Hi James,

You can find out the app service plan name and resource group name that it was/is in by reading the Service Association Link on your subnet:

https://learn.microsoft.com/en-us/rest/api/virtualnetwork/service-association-links/list?tabs=HTTP&tryIt=true&source=docs#code-try-0

Before running the command using above link, you need to enter the resource group name for your virtual network, your subnet name, and the virtual network name in the boxes. After you Run the command, look in the output for "link": "/subscriptions/<subscription ID>/resourceGroups/<resourceGroupName of App Service>/providers/Microsoft.Web/serverfarms/<App Service Plan Name>" which should have the resource group name and app service plan name for the deleted app.

Once you have the above information, hopefully that will be enough for you to follow steps in below article:

Deleting the App Service plan or app before disconnecting the network integration

https://learn.microsoft.com/en-us/azure/app-service/overview-vnet-integration#deleting-the-app-service-plan-or-app-before-disconnecting-the-network-integration

If you are unable to remove it using above instructions then you will need to create New support request and a support engineer will take care of it.

Please click Accept Answer if the above was useful.

Thanks.

-TP

TP 145.8K Reputation points Volunteer Moderator

2023-08-30T08:54:16.86+00:00

@James Gibson Any update?
James Gibson 20 Reputation points

2023-08-30T09:01:24.8433333+00:00

I wasn't able to run the rest query on the website you linked, but I ran it with postman which got me the app service plan name (a bunch of gibberish, which reminded me to look at the bicep file)

I then managed to recreate the app service plan and app service by rerunning the bicep script, don't know why I didn't think of that before 🤦‍♂️ luckily uniqueString() is deterministic
TP 145.8K Reputation points Volunteer Moderator

2023-08-30T09:13:44.63+00:00

Glad you worked it out. It let you remove the link after you re-created everything, correct? Please click Accept Answer to close up this thread.

Thank you.
James Gibson 20 Reputation points

2023-08-30T09:15:24.82+00:00

That's right

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Unable to delete vnet

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