Listing Error 100471: How to Fix Prohibited Characters in Your Product Listings
Error 100471 blocks a listing when disallowed symbols (™ © ® † §), three‑plus punctuation (!!!, ###) or raw HTML (<br>, <b>) appear in titles, bullets or descriptions. The validation runs on every save, feed upload or edit, halting the change until cleaned.
Overview
Amazon assigns error code 100471 to product listings that contain disallowed symbols, excessive punctuation, or stray HTML markup. The validation runs whenever a seller saves a listing, uploads a feed, or edits content, and it blocks the change until the offending characters are removed. Fixing this issue promptly keeps listings live and prevents interruptions in catalog updates.
Key Points
- Disallowed symbols — Characters such as ™, ©, ®, †, and § placed in titles, bullet points, or descriptions will trigger error 100471.
- Over‑used punctuation — Sequences like “!!!”, “???”, “###”, or decorative icons (e.g., ♥♥♥) are flagged as unreadable formatting.
- Embedded HTML — Raw tags such as
<br>,<b>,<p>or any other markup left in customer‑facing fields cause the error to appear. - Attribute‑specific feedback — Amazon’s error message points to the exact field (title, description, bullet, etc.) that contains the problem, simplifying the correction process.
- Bulk upload risk — A single prohibited character pattern repeated across many rows can cause an entire flat‑file import to fail, delaying large‑scale catalog changes.
How to Resolve Error 100471
- Read the error notice — The system will display a message like “Invalid characters found in the product title.” For example, a seller sees “Error 100471 – prohibited characters in bullet 2,” which tells them exactly where to look.
- Open the identified field — Navigate to the indicated attribute in Seller Central or locate the corresponding column in the flat‑file template. If the error points to the description, open the description editor or the “product_description” column.
- Search for non‑standard symbols — Use the browser’s find function (Ctrl + F) to locate symbols such as ™ or ®. Replace “SuperWidget™” with “SuperWidget trademark” or simply remove the symbol.
- Trim repetitive punctuation — Look for runs of three or more identical punctuation marks. Change “Best price ever!!!” to “Best price ever!” and replace “###Limited Offer###” with “Limited Offer.”
Analysis & Recommendations
Why This Matters
A single prohibited character can prevent a title edit from being saved, forcing sellers to pause promotions. In bulk uploads, the same pattern across dozens of rows can cause the whole file to be rejected, delaying large‑scale catalog updates and hurting search visibility.
Key Takeaways
- Error 100471 is triggered by symbols such as ™, ©, ®, †, § in any customer‑facing field.
- Sequences of three or more identical punctuation marks (!!!, ???, ###) are flagged as unreadable formatting.
- Embedded HTML tags like <br>, <b>, <p> cause the error and must be removed before saving.
- One illegal character in a flat‑file can reject the entire upload, affecting all rows that contain the pattern.
Recommended Actions
- →In Seller Central, open the listing edit page, locate the field named in the error (e.g., title or bullet 2), delete any ™, ©, ® symbols and save.
- →Before a bulk upload, open the spreadsheet, use Find & Replace to strip <br>, <b>, <p> tags and replace ™ with the word "trademark", then re‑export...
- →Copy listing text into Notepad (or another plain‑text editor) to strip hidden formatting, then paste back into Seller Central fields before submitt...
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