How is the “availability of goods” function usually implemented in Bitrix?

Question

1C-Bitrix

Hello! How do they make the function available on Bitrix? Create a directory property with the value whether present or what?

Answer 1

Hello.
Each problem has n number of solutions, for example:

1. Add property
   
2. Use stock balances
   

Answer 2

the product has an availability property
, depending on the store settings, you can bind to this property