azure web app error 403 quota exceeded

Hill Abrahams 0 Reputation points
2025-05-05T18:00:25.37+00:00

azure web application quota exceeded this is my first deployment so it may not be configured correctly. error code 403

Azure Web PubSub
Azure Web PubSub
An Azure service that provides real-time messaging for web applications using WebSockets and the publish-subscribe pattern.
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  1. Shree Hima Bindu Maganti 5,480 Reputation points Microsoft External Staff Moderator
    2025-05-05T18:33:10.47+00:00

    Hi @Hill Abrahams
    If your Azure web application is returning a 403 error due to exceeding quota limits, it usually means the app has surpassed its resource limits.

    • Review the quotas for your App Service plan. Free or Shared plans have specific limits on CPU, memory, bandwidth, and filesystem usage. Exceeding these can cause a 403 error.
    • Use the Azure portal to monitor resource usage like CPU, memory, and bandwidth to identify any spikes or high usage.
    • If the app frequently exceeds its quotas, consider upgrading to a higher tier (Basic, Standard, or Premium) with increased resource limits.
    • Optimize your application code and configuration to reduce resource usage. This may involve reducing memory consumption, optimizing database queries, or implementing caching.
    • Configure alerts in the Azure portal to notify you when the app is nearing its resource limits so you can take proactive measures.
    • Check application logs for additional details or patterns that explain why quotas are being exceeded.
      User's image
      Refer the document.
      Azure App Service quotas and metrics

    Resolve errors for resource quotas
    Let me know if you have any further queries.

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  2. Sampath 3,865 Reputation points Microsoft External Staff Moderator
    2025-05-07T05:53:49.27+00:00

    Hello @Hill Abrahams,

    A 403 quota exceeded error in an Azure web app typically means your application has surpassed its allocated resource limits. Here are a few things you can check and try:

    Review Your App Service Plan Quotas if Free and Shared plans have strict limits on CPU, memory, bandwidth, and filesystem usage. If your app exceeds these, it may trigger a 403 error.

    You need Monitor Resource Usage in Azure portal to track CPU, memory, and bandwidth usage. Identifying spikes can help pinpoint the issue.

    You need to Upgrade Your Plan If your app frequently exceeds quotas, consider moving to a higher-tier plan (Basic, Standard, or Premium) for more resources.

    You need to Optimize Your App to reduce memory consumption, optimize database queries, and implement caching to lower resource usage.

    I recommend setting up alerts to configure Azure notifications. This way, you'll be notified when your app is nearing its resource limits, allowing you to take proactive measures.

    Lastly Check Logs for More Details for Application logs may provide additional insights into why quotas are being exceeded.

    You can find more details on Azure App Service quotas and how to resolve quota errors.

    Let me know if you need further assistance

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