Using Deployment slots for your Dynamics 365 Business Central

With Azure Deployment Slots, a feature of the Azure App Service, you can create one or more slots that can host different versions of your app

A custom warm-up is a URL that Azure will hit after code is deployed to the offline deployment slot or slots This gives the app a chance to run

azure deployment slot When you want to implement blue-green deployment using Azure App Services, deployment slots is the way to go You can create a staging slot

azure app service slot How to warm up Azure Web App during deployment slots swap · The first warm up request is made to the web site Notice the user agent value set