Hello Andybalas-premiu, 

Welcome to the Community page, 

Stock management is not available in the Essentials package in Quickbooks, if you are wanting or needing this feature it would be a case of having to upgrade to the Plus account package in Quickbooks so you can use that feature. 

That’s what I thought. Thank you 

@andybalas-premiu 

As another option, you may explore to deploy an inventory management app with your current plan (i.e Essential).

Thank you for the idea. I will explore the options!