Thanks for your answer. That blog i did read, but it says nothing about what i need to buy from Azure. Do i need a SQL instance, App sesrvice, Virtual Machine?
You need to go to Azure portal, click "Create a resource" and create SQL Database
When the database setup will be complete, search for nopCommerce on Marketplace, click on nopCommerce in the search list, complete the settings followed by a click on "Create".