Deployment validation failed.

Question

Deployment validation failed.

Martin von Schantz 0

Simple question really. I've used Azure for ten plus years but I've never had the misfortune to provision an entirely new subscription myself, at least not manually. Well, created one resource group and tried to create one (1) web app on free tier and I'm immediately greeted with:

Deployment validation failed. Additional details from the underlying API that might be helpful: The template deployment 'Microsoft.Web-WebApp-Portal-a7449cee-8c48' is not valid according to the validation procedure. The following resource provider(s) - 'Microsoft.Web/serverFarms (2024-11-01)' reported preflight validation errors. Tracking id is '7e6adee8-9f67-4a4e-b286-093dea864604'. See inner errors for details.

This is a simple linux, ordinary parameters web app created through the portal gui. The AI suggests I create a support ticket to increase my vm count??? what? Is this what cloud is in 2026?

Martin von Schantz 0 Reputation points

2026-07-11T21:52:59.7566667+00:00

The issue is that, per default I have no quota to create vm's? EU North. Well, Usage + Quotas should, I presume give me the ability to request new Quotas. Although it doesn't. It's disabled.
Aditya N 3,230 Reputation points Microsoft External Staff Moderator

2026-07-11T22:03:50.3266667+00:00

Hello @Martin von Schantz

Could you please retry the deployment by selecting the different region and sku as Free tier. Once the deployment got succeeded you can scale-up the SKU based on your requirement.

Just in case if there is any policy restriction.

Open Azure Policy → Assignments, read the "Allowed locations" assignment, and deploy within an allowed region
TP 159.1K Reputation points Volunteer Moderator

2026-07-11T22:09:25.99+00:00

What type of subscription is this? Pay-As-You-Go, or Azure Free, or Azure for Students, something else?

Please Register/Re-Register Microsoft.Web by navigating to your subscription, on left click on Settings -- Resource providers, in search box at top enter microsoft.web. Select Microsoft.Web in the results, click Re-register/Register.

While you are there check Microsoft.Compute and Re-register/Register that as well.

After starting Register or Re-register on the above 2 resource providers, please wait 15-20 minutes. Once you have waited please try my instructions for viewing/increasing App Service quota.

Please note App Service and Virtual Machines quota are separate. In your case you are creating Web App so you need to have available App Service quota (e.g. F1 VMs). I mention this because it can be confusing since error messages will mention VMs when it is actually referring to App Service VMs.

2 answers

Your answer

Martin von Schantz 0 Reputation points

2026-07-11T21:52:59.7566667+00:00

The issue is that, per default I have no quota to create vm's? EU North. Well, Usage + Quotas should, I presume give me the ability to request new Quotas. Although it doesn't. It's disabled.
Aditya N 3,230 Reputation points Microsoft External Staff Moderator

2026-07-11T22:03:50.3266667+00:00

Hello @Martin von Schantz

Could you please retry the deployment by selecting the different region and sku as Free tier. Once the deployment got succeeded you can scale-up the SKU based on your requirement.

Just in case if there is any policy restriction.

Open Azure Policy → Assignments, read the "Allowed locations" assignment, and deploy within an allowed region
TP 159.1K Reputation points Volunteer Moderator

2026-07-11T22:09:25.99+00:00

What type of subscription is this? Pay-As-You-Go, or Azure Free, or Azure for Students, something else?

Please Register/Re-Register Microsoft.Web by navigating to your subscription, on left click on Settings -- Resource providers, in search box at top enter microsoft.web. Select Microsoft.Web in the results, click Re-register/Register.

While you are there check Microsoft.Compute and Re-register/Register that as well.

After starting Register or Re-register on the above 2 resource providers, please wait 15-20 minutes. Once you have waited please try my instructions for viewing/increasing App Service quota.

Please note App Service and Virtual Machines quota are separate. In your case you are creating Web App so you need to have available App Service quota (e.g. F1 VMs). I mention this because it can be confusing since error messages will mention VMs when it is actually referring to App Service VMs.

Answer 1

Hi,

What is the specific error message? You posted part of the error, but there is more to it including a more-detailed error such as not enough quota, etc. You may have to click on Raw tab to view it. If you can't find the details let me know and I can help you find it. In the meantime, I will assume it is related to lack of quota.

Please follow instructions below to see if you can increase your subscription's App Service quota.

In Azure portal, please navigate to Quotas using link below:

https://portal.azure.com/#view/Microsoft_Azure_Capacity/QuotaMenuBlade/~/overview

Next, please click on App Service (Public Preview).

User's image

At the top, click on the Region filter, change it so that the region you want (e.g. East US) is selected.

At the bottom you should see your current App Service quotas and usage. On right, click on pencil (or person) icon next to the quota you would like to increase, for example, F1 VMs if you would like Free SKU, P0v4 for Premium P0v4, etc. Fill out the details on New Quota Request panel on right and click Submit.

Assuming your request is approved you can try deploying your app service again.

Please click Accept Answer and upvote if the above was helpful.

Thanks.

-TP

Answer 2

The error indicates that the ARM template preflight validation for Microsoft.Web/serverFarms is failing in the new subscription. In a newly created or free-type subscription, this is typically caused by subscription-level quota or limits for App Service being set to 0 in that region.

From the referenced guidance, when a template deployment for a Web App fails preflight validation with InvalidTemplateDeployment and an inner error from Microsoft.Web/serverFarms, the common root cause is that the subscription has no available App Service quota (for example, InternalSubscriptionIsOverQuotaForSku for the chosen SKU/VMs) in the target region. In a new subscription this often means the default quota for App Service is effectively zero.

To remediate:

Check and increase App Service quota for the region
- Go to Azure Portal → Quotas.
- Select App Service (Public Preview).
- Use the Region filter to select the region where the Web App is being created.
- In the list of quotas, locate the entry that corresponds to the SKU being used (for example, Free tier F1 VMs, or the specific SKU shown for the plan).
- Use the edit/request icon next to that quota and submit a New Quota Request with a non-zero limit (for example, 1 or more instances).
- After the quota request is approved, retry creating the Web App in the same region and tier.

If the quota is already non-zero and the error persists, the next step is to open a support request so Azure support can check the specific tracking ID and confirm whether a backend quota or subscription configuration issue is blocking Microsoft.Web/serverFarms creation in that subscription.

References: