Error 13004 — ASIN mismatch

The ASIN you're listing against doesn't match the product attributes you're submitting. Amazon detects a mismatch and rejects the offer.

Listing under an existing ASIN where your product attributes (color, size, material, brand) don't match the master product page.

1. Verify the ASIN is for your exact product variant — color, size, model number all match.
2. If your variant differs, list under the correct ASIN or create a new one.
3. Don't 'list-against' an unrelated ASIN to skip the listing-creation process.
4. Resubmit against the correct ASIN.

• Listing red shirts against a blue-shirt ASIN to save time