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Azure Error: Operation results in exceeding quota limits of Core

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Workaround available Azure portal, Azure CLI, PowerShell Updated November 14, 2026Based on 3 user reportsHow we research

Quick answer

Your subscription hit a regional vCPU or resource-count quota. Check usage with az vm list-usage and request an increase in the exact region you deploy to.

Most likely fix: Find which quota you exceeded

How to fix it

Try these in order — the most common fix is first.

  1. 1. Find which quota you exceeded

    1. Run az vm list-usage --location "West US" --output table
    2. Compare CurrentValue to Limit for Total Regional vCPUs and the VM family
    Did this fix it?

  2. 2. Request an increase

    1. In the Azure portal open Subscriptions and select your subscription
    2. Select Usage + quotas then Request increase
    3. Request the exact amount needed in the region you deploy to
    4. If rejected, open the support request link shown
    Did this fix it?

  3. 3. Free Trial subscriptions

    1. Upgrade to pay-as-you-go first; free trials cannot get increases
    Did this fix it?

Symptoms

Deployment fails with OperationNotAllowed 'Operation results in exceeding quota limits of Core. Maximum allowed: 4, Current in use: 4, Additional requested: 2' or ResourceQuotaExceeded.

Why it happens

  • vCPU quota is per subscription and per region
  • Too many resources of one type in a resource group
  • Free Trial subscriptions are not eligible for quota increases

This guide also covers

  • azure quota exceeded
  • azure operation results in exceeding quota limits of core
  • azure vcpu quota increase
  • azure resourcequotaexceeded

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