Web Order product matching sequence.
Products are matched by the following sequence: web store specific Alt Product ID, Acctivate Product ID, general Alt Product ID, UPC, and Customer Product ID
- Alternate Product ID specifically related to that web store template
- Acctivate Product ID
- Alternate Product IDs unrelated to that web store template
- UPC
- Customer Product ID for the Customer on that order.
For more information, review this article.