Supported products, keywords, markets, and hide key

Item Description
Search keywords Enter a search keyword for your app (max. 3) Example of three keywords: Forecasting, Sales, Inventory.
Products your app work with You don't have to select anything – this field is completed automatically because you're developing an app for Dynamics 365 Business Central. Example: Dynamics 365 Business Central.
Markets Choose the markets that your app is available in. Make sure that it resembles the supported countries/regions paragraph in the description text. Read more about supported countries and regions here.
Hide key Enter a secret key that you use to preview your offer in AppSource before going live. Note, this isn't a password and can only contain alphanumeric characters. Example: SalesInventoryKey.