Can't buy Azure Domain

Question

Can't buy Azure Domain

Aron Grzywaczewski 0

I'm getting the following message when buying an Azure custom domain. Has anyone had this preblem and managed to resolve it?

Validation failed for a resource. Check 'Error.Details[0]' for more information. (Code: ValidationForResourceFailed)

The subscription Microsoft.Web.Hosting.Administration.Csm.Common.Domains.Models.SubscriptionModel is not eligible to create an App Service Domain. (Code: SubscriptionExceededMaxDomainLimit)

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Answer 1

Allan Solomon Mejia 7,915

Hello @Aron Grzywaczewski

The SubscriptionExceededMaxDomainLimit error relates to the Azure subscription's eligibility to purchase an App Service Domain, not a DNS configuration issue.

Microsoft documents that the number of App Service domains allowed depends on the subscription type. Free/credit-based subscriptions can be restricted, subscriptions with monthly credits may have a limited number of domains, and some subscription types require sufficient Azure payment history before you can purchase domains.

I would check the following:

Confirm the subscription type under Cost Management + Billing > Subscriptions.
Make sure the subscription doesn't have a spending limit.
If it's a Free Trial or credit-based subscription, App Service Domain purchases aren't supported.
If it's a relatively new subscription, Azure may require sufficient payment history before enabling domain purchases.
If you previously purchased an App Service Domain, check whether you've reached the domain limit associated with your subscription.

If you're using an eligible Pay-As-You-Go subscription and still receive this error, I'd recommend opening an Azure Billing/Subscription support request so Microsoft can check the subscription's domain-purchase eligibility.

As a workaround, you don't need to purchase the domain through Azure. You can register it with an external domain registrar and then configure its DNS records and map the existing domain to your Azure App Service.

Sharing this reference with you: Buy and configure an Azure App Service domain

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Aron Grzywaczewski 0 Reputation points

2026-08-28T14:35:48.15+00:00

The subscription is Microsoft Azure Plan. I can't change it to any other subscriptions as this is the only available in the dropdown. When I click the link below that to show different subscriptions, it takes me to a page where I can select pay as you go. But once selecte, it takes me back to this page. This is super annoying.
Allan Solomon Mejia 7,915 Reputation points

2026-08-28T15:24:04.4733333+00:00
Hi @Aron Grzywaczewski

Thanks for confirming. The “Microsoft Azure Plan” shown in that dropdown doesn't necessarily mean you need to convert your subscription to another subscription from that page. I wouldn't keep going through the “Add a different type of subscription” link.

The SubscriptionExceededMaxDomainLimit can also occur because of the subscription's App Service Domain purchase eligibility, and some subscription types require sufficient Azure billing/payment history before domain registration is enabled.

I would check these items first:

Under Subscriptions → your subscription → Properties, confirm the actual subscription/offer details and that its state is Enabled.

Verify that a valid payment method is associated with the billing account.

Confirm that the App Service itself is using a paid App Service Plan, not Free (F1), which is a prerequisite for App Service Domains.

If this is a new or recently converted Azure subscription, the domain-purchase restriction may be related to the billing-history requirement.

If those conditions are satisfied and you still receive "SubscriptionExceededMaxDomainLimit", then I would open an Azure Billing/Subscription support request. At that point, Microsoft needs to check the subscription's backend eligibility for Microsoft.DomainRegistration; changing selections in the portal won't necessarily remove that restriction. Similar cases with otherwise valid PAYG subscriptions have required Microsoft to investigate the eligibility block.

So I wouldn't recommend creating another Azure subscription just to work around this yet. If you need the domain immediately, registering it with an external registrar and mapping it to the App Service remains a supported alternative.

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