I ma not able to delete application

Question

I ma not able to delete application

Mesala Govinda 0

Brief summary of the issue

Resource Group 'centralindia-app-gateway-rg' is stuck in Deleting (deprovisioning) state.

VMSS is stuck with: ProvisioningState/failed/NetworkingInternalOperationError

I am unable to: - Delete VMSS - Create resources (409 ResourceGroupBeingDeleted) - Modify resources

This is blocking my subscription usage.

Please request backend cleanup of the Resource Group and all dependent resources.

Venkatesan S 10,830 Reputation points Microsoft External Staff Moderator

2026-04-13T00:49:33.2966667+00:00

Hi

Thank you for contacting us about the azure resource group deletion issue. We are looking into this issue.
Mesala Govinda 0 Reputation points

2026-04-13T02:00:31.19+00:00

Hello Hemalatha ,

Could you please delete the resource group and i have provided the all the required information?

Thank you
Mesala Govinda 0 Reputation points

2026-04-13T03:34:59.2933333+00:00

Hello Hemalatha,

This issue is currently impacting me as the resources are still in a “Deleting” state and continue to incur charges. I kindly request you to prioritize this case and, if possible, perform a backend cleanup or force deletion of the affected resources at the earliest.

This was created for practice and not business subscription and cost is increasing hour by hour.

Please do the needful Asap.

Thank you
Anonymous

2026-04-13T03:38:16.2633333+00:00

We understand the urgency and billing impact. The issue is caused by a VMSS stuck in a failed state, blocking Resource Group deletion.

We have escalated this to the backend (VMSS team) for priority cleanup and will keep you posted.
Mesala Govinda 0 Reputation points

2026-04-13T05:21:59.9833333+00:00

Hello Hemalatha,

The VM Scale Set centralindia-product-cloud-service-vmss has been in a "Deleting" provisioning state for an extended period. Additionally, we encountered the error "NetworkingInternalOperationError", which indicates a possible backend issue. I kindly request you to expedite the backend investigation and perform any necessary force deletion or cleanup at the earliest.

Thank you for your continued support.
Mesala Govinda 0 Reputation points

2026-04-13T05:43:29.3933333+00:00

Hello Hemalatha,

Could you please check on high priority, and it's failed due to network issue.

Please do the needful ASAP.
Mesala Govinda 0 Reputation points

2026-04-13T06:38:18.5533333+00:00

Hello Hemalatha,

Could you please delete the account itself if the resource group deletion is taking time since cost is incurring every hour.

Please do the needful
Anonymous

2026-04-13T07:03:31.9366667+00:00

Thank you for your patience.

We understand the urgency of your request. Please be assured that our engineering team is actively reviewing the issue and working towards a resolution. This may take a little time as they are performing the mitigations.

We kindly request you to allow us some additional time, and we will keep you updated as soon as we have further information or a solution.

Appreciate your understanding and patience.
Mesala Govinda 0 Reputation points

2026-04-13T07:24:06.62+00:00

Thank you for the update. please do the needful and if possible, please stop costing on these resources till complete backed clean up since i am not using this resource group.
Alex Burlachenko 25,290 Reputation points MVP Volunteer Moderator

2026-04-13T07:36:36.7666667+00:00
hi & thx for join us at Q&A portal,

yeah this is same pattern as before RG stuck = backend mess, not ur config u got

RG in deleting

VMSS failed with NetworkingInternalOperationError

409 on any action

that combo basically means Azure control plane cant clean dependencies usually its

NIC / LB / backend pool stuck

subnet reference not released

VMSS instance half-deleted

so RG delete just hangs forever, u can try quick check (low chance but worth a few mins), list resources still inside

az resource list -g centralindia-app-gateway-rg

if u see leftovers try delete them manually (NICs, LB, disks), sometimes helps stop VMSS first (if possible)

az vmss deallocate ...

but since u already got failed state probably wont work, real talk once RG is in this state + networking error ur done from client side, no CLI, no portal fix, u need open support ticket category compute/network ask for backend cleanup / force delete of RG + VMSS. They will remove stuck dependencies, clear RG lock state... usually fixed pretty fast once it hits right team.

rgds,

Alex
Anonymous

2026-04-13T11:52:40.8933333+00:00

Hello Mesala,

Could you please try to delete the resource group now and let me know the status. Thanks
Anonymous

2026-04-14T05:37:17.7266667+00:00

Hello Mesala,

Could you please provide the update on this. They have cleared the dependencies from backend. Are you able to delete the resource group now??

2 answers

Your answer

Venkatesan S 10,830 Reputation points Microsoft External Staff Moderator

2026-04-13T00:49:33.2966667+00:00

Hi

Thank you for contacting us about the azure resource group deletion issue. We are looking into this issue.
Mesala Govinda 0 Reputation points

2026-04-13T02:00:31.19+00:00

Hello Hemalatha ,

Could you please delete the resource group and i have provided the all the required information?

Thank you
Mesala Govinda 0 Reputation points

2026-04-13T03:34:59.2933333+00:00

Hello Hemalatha,

This issue is currently impacting me as the resources are still in a “Deleting” state and continue to incur charges. I kindly request you to prioritize this case and, if possible, perform a backend cleanup or force deletion of the affected resources at the earliest.

This was created for practice and not business subscription and cost is increasing hour by hour.

Please do the needful Asap.

Thank you
Anonymous

2026-04-13T03:38:16.2633333+00:00

We understand the urgency and billing impact. The issue is caused by a VMSS stuck in a failed state, blocking Resource Group deletion.

We have escalated this to the backend (VMSS team) for priority cleanup and will keep you posted.
Mesala Govinda 0 Reputation points

2026-04-13T05:21:59.9833333+00:00

Hello Hemalatha,

The VM Scale Set centralindia-product-cloud-service-vmss has been in a "Deleting" provisioning state for an extended period. Additionally, we encountered the error "NetworkingInternalOperationError", which indicates a possible backend issue. I kindly request you to expedite the backend investigation and perform any necessary force deletion or cleanup at the earliest.

Thank you for your continued support.
Mesala Govinda 0 Reputation points

2026-04-13T05:43:29.3933333+00:00

Hello Hemalatha,

Could you please check on high priority, and it's failed due to network issue.

Please do the needful ASAP.
Mesala Govinda 0 Reputation points

2026-04-13T06:38:18.5533333+00:00

Hello Hemalatha,

Could you please delete the account itself if the resource group deletion is taking time since cost is incurring every hour.

Please do the needful
Anonymous

2026-04-13T07:03:31.9366667+00:00

Thank you for your patience.

We understand the urgency of your request. Please be assured that our engineering team is actively reviewing the issue and working towards a resolution. This may take a little time as they are performing the mitigations.

We kindly request you to allow us some additional time, and we will keep you updated as soon as we have further information or a solution.

Appreciate your understanding and patience.
Mesala Govinda 0 Reputation points

2026-04-13T07:24:06.62+00:00

Thank you for the update. please do the needful and if possible, please stop costing on these resources till complete backed clean up since i am not using this resource group.
Alex Burlachenko 25,290 Reputation points MVP Volunteer Moderator

2026-04-13T07:36:36.7666667+00:00

hi & thx for join us at Q&A portal,

yeah this is same pattern as before RG stuck = backend mess, not ur config u got

RG in deleting

VMSS failed with NetworkingInternalOperationError

409 on any action

that combo basically means Azure control plane cant clean dependencies usually its

NIC / LB / backend pool stuck

subnet reference not released

VMSS instance half-deleted

so RG delete just hangs forever, u can try quick check (low chance but worth a few mins), list resources still inside

az resource list -g centralindia-app-gateway-rg

if u see leftovers try delete them manually (NICs, LB, disks), sometimes helps stop VMSS first (if possible)

az vmss deallocate ...

but since u already got failed state probably wont work, real talk once RG is in this state + networking error ur done from client side, no CLI, no portal fix, u need open support ticket category compute/network ask for backend cleanup / force delete of RG + VMSS. They will remove stuck dependencies, clear RG lock state... usually fixed pretty fast once it hits right team.

rgds,

Alex
Anonymous

2026-04-13T11:52:40.8933333+00:00

Hello Mesala,

Could you please try to delete the resource group now and let me know the status. Thanks
Anonymous

2026-04-14T05:37:17.7266667+00:00

Hello Mesala,

Could you please provide the update on this. They have cleared the dependencies from backend. Are you able to delete the resource group now??

Answer 1

Hello Govinda,

The issue was caused due to a dependency conflict between NIC deletion and the Application Gateway backend configuration.

During the NIC deletion process, the Network Resource Provider (NRP) identified that the NIC was still associated with the Application Gateway (centralindia-app-gateway) backend pool. Because of this dependency, the operation required an update to the Application Gateway through Gateway Manager (GWM).

This triggered an internal PutLoadBalancerOperation, which failed during validation because the subscription was in a Warning state. Due to this state restriction, update operations were blocked, resulting in a failure in Operation.cs (line 3155).

As a result, the NIC delete operation could not proceed, which also caused dependent resource cleanup operations to get blocked.

After internal validation, the subscription state was temporarily moved back to Registered to remove the operational restriction. Once this correction was applied through the approved backend process, the Network Resource Provider was able to continue the delete operation successfully and the dependent cleanup flow proceeded without further validation issues.

Could you please retry the operation and provide status on that.

Anonymous

2026-04-16T14:34:53.3966667+00:00

Hello Mesala Govinda

Could you please provide the update on this. They have cleared the dependencies from backend. Are you able to delete the resource group now??
Anonymous

2026-04-17T04:26:45.0833333+00:00

Hello Mesala Govinda

If the issue is resolved. Could you please accept the answer and upvote it. Thanks.

If issue still persists, please let me know in comments. Thanks

Answer 2

Salamat Shah 750 MVP

This is a backend issue caused by a failed VM Scale Set (VMSS) networking operation, which leaves the Resource Group stuck in a Deleting state. Once this happens, self service recovery is not possible.

This issue cannot be fixed via Portal, CLI, or PowerShell.

Microsoft backend cleanup is required to unblock the subscription.

For more troubleshooting use the below Microsoft recommendation:

https://learn.microsoft.com/en-us/azure/azure-resource-manager/management/delete-resource-group?tabs=azure-powershell#troubleshoot

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