Duplicate product ID

Two or more products in your catalog share the same id. Meta keeps the first and disapproves the rest.

Variant exports that don't differentiate ids by color/size, or feed deduplication misconfiguration.

1. Make every id unique across the catalog. Append variant attributes to differentiate.
2. Audit the feed before submission — flag duplicate id rows for fix.
3. Use item_group_id (not id) to indicate variant grouping.

• Reusing parent SKU as id for every variant