Overview

Error 90110 is a feed processing warning that Amazon Seller Central returns when a submitted product listing contains an unrecognized item condition value. When this occurs, Amazon automatically replaces the invalid condition with a default value rather than rejecting the submission outright. Sellers who regularly upload product data via feeds, flat files, or API integrations need to understand this error to ensure their listings accurately reflect the intended item condition.

Key Points / What Sellers Need to Know

• Automatic default substitution — When Amazon encounters a condition value it does not recognize, it silently replaces it with a default condition rather than failing the entire feed. This means your listing may go live with an incorrect condition if you do not review your processing reports.
• Feed-based submissions affected — This error applies to inventory file uploads, flat file submissions, and API-based feed integrations where condition values are passed as part of the product data.
• Condition values must match Amazon's accepted list — Amazon only accepts specific condition values such as "New," "Used - Like New," "Used - Very Good," "Used - Good," "Used - Acceptable," "Collectible," and "Refurbished." Any deviation, including typos or alternative formatting, will trigger this error.
• Processing reports are essential — Since Amazon substitutes a default rather than rejecting the listing, sellers must actively check their feed processing reports to catch this warning.
• Revenue and account risk — Listing an item under the wrong condition can lead to customer complaints, A-to-Z claims, and potential policy violations if the delivered product does not match the stated condition.

How Error 90110 Works

When you submit a product feed to Amazon, each listing entry includes a condition field that tells Amazon whether the item is new, used, refurbished, or collectible. Error 90110 is triggered when the value you provide for this field does not match any of the recognized condition options in Amazon's system. Instead of halting the feed or rejecting that specific listing, Amazon logs the warning and substitutes its own default condition value. The substituted default is included in the error message so you can identify what Amazon used in place of your original input. This behavior is designed to keep feeds processing smoothly, but it can create serious problems if left uncorrected.