What is important if i want to import large quantities of products to my shop?

We recommend having a server with CLI access. CLI (command line interface) access is not required only if you are running a small e-commerce shop and are going to export / import small amounts of products. Product Export or Upload is resource intensive - and these tasks should be executed from CLI. If you do not have CLI access or the possibility to execute commands from the console, then you can use a HTTP-based cron command. It will work if you do not have many products. It is also slower.