Unable to import a duplicate reference/SKU

When importing an order, you may see:

Duplicate reference in catalog (XXX-YYY) — 2 products or combinations match in PrestaShop

(Exact module string. The SKU and count vary.)

The reference / SKU exists at least twice in PrestaShop (products or combinations). The module cannot choose which one to use.

Duplicate example:

Every product and every combination must have a unique reference:

Validate your catalog structure

Action: fix the duplicate reference(s), then retry the import.

Updated on: 12/10/2026