How to properly link OpenCart 2.x products and My Warehouse?

Question

opencart

Hello!
Can you tell me how to clearly understand what to connect OpenCart 2.x with My Warehouse with?
Suggested module options OC:
Parameter MC:

• External code
  
• Product code
  
• vendor code
  

OC parameter:

• Product ID
  
• Model
  
• vendor code
  

Answer 1

Depends on how you have stocked items in OC and My warehouse.
Look at which fields of your specified match, and put them.

Answer 2

if according to the mind, then the articles, that's what they are intended for