Overview

Amazon assigns a set of 14000‑series error codes to product feed submissions that fail validation. The codes appear when sellers upload listings via Seller Central, flat‑file templates, or API feeds, and they indicate why a SKU could not be processed. Recognizing and fixing these errors is critical because unresolved codes keep products offline, delay price updates, and can interrupt inventory synchronization.

Key Points

• Error 14001 – Missing or malformed mandatory attribute — For example, a missing “Brand” field on a clothing SKU triggers 14001, preventing the item from entering the catalog.
• Error 14003 – Invalid value for a controlled vocabulary — Supplying “Red‑Blue” as a color on a home‑goods product generates 14003, because the color list does not contain that combined entry.
• Error 14012 – Incorrect data type or format — Entering a date as “31/12/2024” instead of the required ISO format “2024‑12‑31” results in 14012, halting the feed line.
• Error 14013 – Duplicate SKU within the same feed — Uploading two rows with SKU “ABC123” in a single file raises 14013, causing both rows to be rejected.
• Error 14016 – Category‑specific required field absent — A toy listed without the “Age Range” attribute triggers 14016, as Amazon’s toy category mandates that field.
• Error 14020 – Exceeded character limit — Providing a product description longer than 2,000 characters leads to a 14020 error, which is part of the broader 14000 series.

How Feed Errors Work

1. Data ingestion — When a seller submits a feed, Amazon parses each row and maps fields to internal catalog attributes. Example: A flat‑file upload containing 5,000 rows is read line‑by‑line, and each SKU is matched to the catalog schema.
2. Validation against rules — Amazon checks every attribute for presence, correct format, and compliance with category‑specific constraints. Example: The system verifies that the “Price” field contains a numeric value with two decimal places and that the “UPC” follows a 12‑digit pattern.