SubscriptionExceededMaxDomainLimit when purchasing App Service Domain after upgrading from free trial to Pay-As-You-Go

Question

I recently upgraded my Azure subscription from free trial to Pay-As-You-Go. I am now trying to register

a domain (bmszeno.com) via App Service Domains, but the purchase is being blocked with the following

error:

"The subscription Microsoft.Web.Hosting.Administration.Csm.Common.Domains.Models.SubscriptionModel is

not eligible to create an App Service Domain."

Error code: SubscriptionExceededMaxDomainLimit

I have confirmed the following:

• Subscription state: Enabled
• Quota ID: PayAsYouGo_2014-09-01
• Spending limit: Off
• Microsoft.DomainRegistration resource provider: Registered

The issue persists both through the Azure portal and via ARM template deployment. I have tried multiple

times over the past 24+ hours.

Tracking IDs from failed deployment attempts:

• 3b204494-b2b6-4e6e-a9d8-65fc42ed57f6
• 4e35e52b-a796-49eb-8366-b555591e18c3
• d86636a7-3571-4649-a838-85e8d07c1627
• 1051a77f-1784-4aec-948b-7c07162301c6

Is there a manual unblock required for newly converted subscriptions? How can this be resolved?

Answer 1

I think the subscription is just hitting the AppServiceDomain purchase restriction after moving from Free Trial to Pay‑As‑You‑Go, and the only actions are checking All resources → Microsoft.DomainRegistration/domains and asking Support → Quota to enable domain purchase.

Answer 2

Hello @Aline BMS

Thank you for reaching out to Microsoft Q&A regarding your App Service Domain query. The referenced error message means Azure has blocked domain registration for that subscription because it has hit the per-subscription domain-registration limit or a fraud-prevention hold applied during subscription conversion. This is not something you can fix from the portal — you must either use another subscription / external registrar or open an Azure support request to remove the hold or raise the domain limit.

That said please find the Verified steps to diagnose and resolve your issue below for your review.

---

Verified steps to diagnose and resolve

1. Check whether any App Service Domains already exist in the subscription (Portal -> All resources filter by type Microsoft.DomainRegistration/domains) or with Azure CLI:

az resource list --resource-type "Microsoft.DomainRegistration/domains" --subscription 
<your-subscription-id>

1. If unused domains are present, delete them; otherwise proceed to support.
2. Create an Azure support request:
   • Support -> New support request -> Issue type: "Quota" / "Subscriptions and billing" (or "Other")

• Include the error text, error code SubscriptionExceededMaxDomainLimit, your subscription id, and the failed deployment tracking IDs you listed.
• Ask support to remove the domain-registration hold or increase the per-subscription domain-registration limit for your subscription after the conversion from Trial.

1. Workarounds while waiting for support:
   • Register the domain with another registrar and then add it to your App Service by configuring DNS records.
     • Use another Azure subscription that does not have the hold.
2. Newly converted/trial subscriptions are commonly subject to automated limits/fraud-prevention for domain purchases; support must remove those holds.

• Provide the tracking IDs and timestamps to support to speed resolution.

I hope you find this to be helpful, and if you do, please mark this as an "accepted" answer. This helps other's in the community find relevant answers. Also, please follow me here at Microsoft Learn Q&A. Best regards, Andrew Taylor