Hi Shahnawaz,
Variables: Specific to single catalog item. Cannot be reused/associated with multiple items.
Variable Set: Collection of variables forms a variable set. Unlike variables, single variable set can be reused i.e can be associated with multiple catalog items
Consider 3 catalog items say Unix, Linux and Mac.
A single variable set with variables (OS Name, OS Version, Disk Space, etc) can be reused for all the above 3 items
-Udhay
Please Hit like, Helpful or Correct depending on the impact of the response
