Cannot delete subnet delegated to Microsoft.PowerPlatform/vnetaccesslinks

Question

Cannot delete subnet delegated to Microsoft.PowerPlatform/vnetaccesslinks

Ian Coetzer 86

Hi

I am trying to delete a virtual network.

however, there is one subnet that is delegated to " Microsoft.PowerPlatform/vnetaccesslinks" which I cannot undelegate.

How do I delete the virtual network if the subnet cannot be undelegated?

I also tried via CLI:

az network vnet subnet update --resource-group xxx --name dhpowerbisubnet --vnet-name xxx --remove delegations

And received the same error message:

(SubnetMissingRequiredDelegation) Subnet /subscriptions/xxx/resourceGroups/xxx/providers/Microsoft.Network/virtualNetworks/xxx/subnets/dhpowerbisubnet requires any of the following delegation(s) [Microsoft.PowerPlatform/vnetaccesslinks] to reference service association link /subscriptions/xxx/resourceGroups/xxx/providers/Microsoft.Network/virtualNetworks/xxx/subnets/dhpowerbisubnet/serviceAssociationLinks/PowerPlatformSAL.

Code: SubnetMissingRequiredDelegation

Message: Subnet /subscriptions/xxx/resourceGroups/xxx/providers/Microsoft.Network/virtualNetworks/xxx/subnets/dhpowerbisubnet requires any of the following delegation(s) [Microsoft.PowerPlatform/vnetaccesslinks] to reference service association link /subscriptions/xxx/resourceGroups/xxx/providers/Microsoft.Network/virtualNetworks/xxx/subnets/dhpowerbisubnet/serviceAssociationLinks/PowerPlatformSAL.

Ian Coetzer 86 Reputation points

2023-05-24T15:46:45.87+00:00

Hi

Here is the screenshot when trying to delete via the UI portal:

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Ian Coetzer 86 Reputation points

2023-05-24T15:46:45.87+00:00

Hi

Here is the screenshot when trying to delete via the UI portal:

Answer 1

ChaitanyaNaykodi-MSFT 27,506 Microsoft Employee Moderator

@Ian Coetzer

Thank you for posting a detailed question here.

Based on the error above I think the deletion blocked in backend and a support request will be required here to remove the subnet delegation and to delete the Virtual Network.
If you have a support plan you may file a support ticket, else could you please send an email to xxxxxxx@microsoft.com with the below details so that I can enable a one-time free support ticket for you in this case.

Subject : Attn Chaitanya

Thread URL: Link to this thread.

Subscription ID

Please let me know once you have done the same.

EDIT:

Another likely cause of this issue might be "When you remove the last gateway associated to a gateway/subnet, it might take up to 48-72 hours before you can delete the subnet or VNet." This is documented here
User's image

Please "Accept the answer" if the information helped you. This will help us and others in the community as well.

Ian Coetzer 86 Reputation points

2023-05-24T16:55:45.15+00:00
Hi

I am not sure why, but after about an hour I could

set the subnet's delegation to None successfully...

delete the subnet

delete the virtual network

I do not know what changed, but this is after around three hours of struggling. ...
ChaitanyaNaykodi-MSFT 27,506 Reputation points Microsoft Employee Moderator

2023-05-24T18:32:36.52+00:00

@Ian Coetzer

Thank you for getting back and glad to know the issue was resolved.

This got me thinking and I investigated this issue further and I came across the note below which is documented here. This might be the cause on why you were not able to delete the subnet before and were successful few hours later.

I will update my answer above to include this note.

Based on similar issues I have come across, creating a support request has also helped in resolving this type of issue.

Please "Accept the answer" if the information helped you. This will help us and others in the community as well.

Answer 2

Jeremy White 0

I'm having the same issue when trying to delete a tenant that we no longer use. I tried to email the address shown in the solution but get a bounce. Can anyone offer any other solutions?

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Cannot delete subnet delegated to Microsoft.PowerPlatform/vnetaccesslinks

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