Now, let's create a card page. The process for a card page is almost the same as for a list page, but using a different snippet. Our page number will be 50101 , and the name will be Radio Show Card:
Let's change the launch.json file to this new page and publish the extension again. We can preview the page by making a modification to the launch.json file. Change the startupObjectId to 50101 and select AL: Publish without debugging from the Command Palette, as shown in the following screenshot: