title: Is there a standard or pre-built inventory management for products in B2B commerce?
body: <p>I have set up a store and integrated a checkout flow. But there doesn't seem to be a standard quantity field on the product or any available inventory object to calculate the product quantity. Am I missing something? Or does Salesforce not really provide that option yet? Could someone direct me in the right way?</p>
  <p>I want to be able to have a quantity field on my products/warehouse, etc., so that if there are only 5 units of that product available in my inventory, then the customer cannot order for more than 5 units of that product.</p>
  <p>Is there a standard feature available for this? Or do I have to customize this process?</p>
  <p>Thanks.</p>