Duplicate item IDs

Pinterest detected two or more rows in your feed sharing the same id. Both rows are blocked from publishing - Pinterest will not pick one over the other.

Most often this comes from variant feeds where each color or size accidentally inherits the parent SKU instead of a unique variant SKU. It can also result from joining two data sources without de-duplicating, or from a feed transformation that drops the variant suffix before export. Pinterest treats id as a strict primary key with no tolerance for collisions.

1. Run a duplicate check on the id column and list every collision.
2. Append a variant identifier (color/size) to make each row unique - e.g., SKU123-RED-M.
3. If two products genuinely share the same SKU, merge them in your PIM before exporting.
4. Document the ID convention so future imports follow the same rule.
5. Re-ingest and confirm error 123 has dropped to zero.

• Generating IDs from product name slugs that collide between near-identical products
• Re-uploading the same feed twice in different rows for safety - Pinterest reads them both
• Mixing parent and child IDs in the same feed with no item_group_id to disambiguate