How to resolve intermittent 503 errors with high CPU utilization in Azure App Service during peak traffic spikes while maintaining SLA?
We have a .NET Core 6 API hosted on Azure App Service (Premium P3v2 tier) that experiences intermittent HTTP 503 errors during unpredictable traffic spikes (10x baseline). Application Insights shows CPU saturation (~95%) coinciding with the errors, but…
Azure App Service
Domain Renewal issues - Turned on Auto-Renew a few days after expiration but not working
I have been unable to successfully renew my domain after it expired. I did turn on auto-renew after the expiration date. The app service domain shows as active but with an expiration date of: 2025-05-18T00:30:27. The Renew button gives the following…
Azure App Service
How to fix "This region has quota of 0 instances for your subscription. Try selecting different region or SKU." on a new subscription
As the title implies, I have setup a new subscription. I am attempting to create an app service using that subscription, in this case hosted in the US East region. I am getting the below error. What region should I be using? There are no services on this…
Azure App Service
Unable to find and delete three App Service Plans in the Azure Portal for which I am getting unexpected billing costs
The 3 additional service plans might have mistakenly created with a wrong price tier when I was publishing the App Services in Visual Studio 2022. The information that appears below was collected via the Cost Analysis of my subscription that is a…
Azure App Service
Unable to create Azure App Service plan in US East region with error "This region has quota of 0 instances for your subscription"
I'm trying to create a new App Service plan (using the P0V3 SKU) in US East region, and I continually get the following error message: This region has quota of 0 instances for your subscription. Try selecting different region or SKU. (Code:…
Azure App Service
Azure web app SSL broken - HSTS issues
net::ERR_CERT_COMMON_NAME_INVALID have reissued the certificate in Azure Web App and also bindings been done again. The browser shows insecure in any browser, edge, chrome, firefox. It appears the certificate is stuck to azurewebsites.net instead of the…
Azure App Service

PHP Application on Azure App Service Crashes Immediately
I have deployed a PHP frontend application on Azure App Service using the default Github Actions Workflow. The application using the default startup.sh as well set by Oryx. But the container crashes without any explanation, here are the logs: …
Azure App Service
App Service not saving environment variable SENDGRID_API_KEY – value returns null
Subject: App setting variable SENDGRID_API_KEY not recognized in Azure App Service – value returns null Description: Hi Microsoft Support, We have deployed a .NET-based email API (isupplier-emailapi) using Azure App Service under the resource group…
Azure App Service
Azure App Services Not Taking the Environment Variables and Causing 400 Error on Deployment
Hello! I am trying to deploy my dynamic NextJS website on Azure App Services but I am facing NEXTAUTH_URL env variable issue. In my website the main home page part is static anyone can use it, there is a link to an internal employee portal that uses MS…
Azure App Service
Access Restriction for Azure Web Apps - Seeking Secure Solutions for Remote Access
I'm looking for ideas on how to implement access restrictions for Azure Web Apps. Currently, access is limited to our internal network by configuring a whitelist of internal network IP addresses in the Web App's settings: Settings > Networking >…
Azure App Service
Azure Web App Slots Swapping
I have implemented "Blue-green" deployment strategy for my docker-compose based Azure App Service this way. In Deployment settings, I enabled 'Continuous Development' to "On" in staging slot and "Off" in production slot.…
Azure App Service
Azure App Configuration Feature Flags in Blazor WASM App: Performance Concerns and Optimization
Dear Team, The implementation of Azure App Configuration Feature Flags in a Blazor WASM application allows for displaying a maintenance page based on feature flag status. However, there is a concern regarding performance when calling the API for feature…
Azure App Service
Next not found in deploying teh >Next project on the Azure App Service
I am trying to publish the app on the azure app service via github actions I am getting the successful deployment in the github actions but I am not seeing my website and getting the following errors. I have tried multiple combinations of making the…
Azure App Service
A "write tag" error appears in the Web App's activity logs
After configuring Application Insights for a Web App,write tag errors appear in the Web App's activity logs. Current testing shows that simply viewing the Web App in the portal triggers this tag write error each time. What could be causing this issue?…
Azure App Service
Azure B2C - Bearer AccessToken not being generated when using ProfileEdit/PasswordReset custom policies using Local Accounts
I'm having some trouble getting the AccessToken to generate for the PasswordReset and ProfileEdit custom policies using Local Accounts. It seems to work fine and generate the token correctly for SignIn/SignUp policies using the auto generated files I got…
Azure App Service
SSL Certificate not working ERR_CERT_DATE_INVALID
I'm getting this error on our website: net::ERR_CERT_DATE_INVALID Certificate is active in our Azure Services dashboard for the WebApp, running on a virtual machine. I'm not sure what the configuration error is, but the troubleshooter is not finding…
Azure App Service
Migrate a VMachine to Azure (Great Plains in Windows Server 2008)
I would like to know the implications of migrating a virtual machine from Great Plains to Azure, using the same license and architecture, is this possible?
Azure Virtual Machines
Azure VMware Solution
Azure App Service
Windows Server


504 Error in Azure Web App (Fastapi & Postgres) with structure like Microsoft Fastapi/Postgres Demo App
I keep getting 504 errors when trying to connect to the Postgres database from an app that I built using the microsoft fastapi/postgres demo app. I followed these instructors to the T. …
Azure App Service
How do you configure a static web app to accept deployments from a branch other than main?
I am trying to deploy a fairly simple react app from GitHub actions. The action is triggered on a branch other than main. I get this error on the Build & Deploy phase: The content server has rejected the request with: BadRequest 151Reason: The GitHub…
Azure App Service

How can I force outbound traffic from my Azure App Service to go through a Site-to-Site
How can I force outbound traffic from my Azure App Service to go through a Site-to-Site VPN to on-prem in a Hub-and-Spoke topology? Current setup: I’m using a Hub-and-Spoke network architecture The App Services are deployed in a Spoke VNet The VPN…