# How should the Transportation Identifier be selected?

When you connect affiliate platforms such as Awin, Impact, or Goaffpro in Attribuly, you need to select an option for the Transportation Identifier.

[![](/knowledge-assets/1551146ad413e85deba8ec31.png)](/knowledge-assets/1551146ad413e85deba8ec31.png)

-   When the order ID you see on the affiliate platform is a long numeric string (for Shopify stores, it is usually a 13-digit number), select Order ID.
    
-   When the order ID you see on the affiliate platform is a short numeric string, select Order Number.
    
-   When the order ID you see on the affiliate platform is a combination of numbers and letters (or other characters), select Order Name."
    

[![](/knowledge-assets/8a401edc23982416f0f73387.jpg)](/knowledge-assets/8a401edc23982416f0f73387.jpg)