- Provide high-quality photos that clearly highlight distinguishing features (packaging, model number, labels).
- Attach GS1 certificates or proof of unique UPC codes per product.
- Supply product specification sheets to highlight functional differences.
- Include screenshots or links to customer reviews or questions that mistakenly treat the merged products as one item.
- Write a concise but comprehensive explanation detailing why the products are unique and should have separate ASINs.
- Organize all documents into a professional PDF or ZIP file for upload with your Seller Support case.
Conclusive evidence showing unique legitimate product differences backed by UPC ownership and clear product imagery is the best way to convince Amazon to unmerge ASINs successfully.
Related: What evidence most often convinces Amazon to unmerge (cleave) ASINs?
