Overview

Sellers uploading inventory files to Amazon sometimes encounter error 99054, which flags values that do not match the system’s predefined lists. The error appears during feed processing and causes only the offending attribute to be ignored, leaving the rest of the file intact. Recognizing and correcting the issue prevents missing product details that can hurt visibility and sales.

Key Points

• Error trigger — The error fires when a field contains a value that is not on the official “Valid Values” list for that attribute, such as entering “Sky Blue” where only “Blue” is accepted.
• Non‑blocking nature — Amazon skips the invalid entry but continues to process every other row, so a single mistake does not halt the entire upload.
• Template‑driven validation — Each product category has its own spreadsheet template; Amazon cross‑checks every cell against the values defined in the template’s “Valid Values” tab.
• Report guidance — The feed processing report pinpoints the exact column and row where the invalid value resides, allowing sellers to locate the problem quickly.
• Cross‑regional differences — A value accepted in the US marketplace (e.g., “Grey”) may be rejected in the UK marketplace, where the spelling “Gray” is required.
• Resolution path — Fixes involve consulting the “Data Definitions” sheet for format rules, updating the feed with a compliant value, and re‑submitting the file.

How Error 99054 Works

1. Upload validation — When a seller submits a CSV or Excel feed, Amazon’s backend parses each column and compares the entry to the master list for that attribute; for example, a “Material” entry of “100 % Cotton” is flagged because the list only permits “Cotton”.
2. Error flagging — If a mismatch is detected, the system records error 99054 in the processing report, notes the offending cell, and omits that specific attribute from the update while preserving the rest of the row.
3. Partial acceptance — The remaining attributes—price, quantity, SKU, etc.—are still applied to the catalog, meaning the product may go live with a blank or outdated field, such as a missing color designation.