Exercise - Create an Azure IoT Central web application
Use the following steps to create an Azure IoT Central application and link it to your Azure Sphere tenant:
Open the Azure IoT Central web portal.
Select Build a solution.
Sign in with your Microsoft personal, work, or school account. If you don't have a Microsoft account, create one for free by using the Create one! link.
Expand the sidebar menu by selecting the Menu icon.
Go to Build, select Custom app, and then select Create app.
Specify the Application name and URL values.
Select the pricing plan. For now, select Free. You can move to a standard plan with two free devices after seven days.
Select Create.