Understanding Amazon Error 99011: How to Fix Invalid or Conflicting Column Values in Feed Submissions
Error 99011 is a feed processing warning triggered when a column value in a seller's upload file is invalid or conflicts with another column. Amazon ignores the offending value rather than rejecting the row, which can lead to silently incomplete listing updates.
Overview
Error 99011 is a common feed processing warning that Amazon sellers encounter when uploading inventory files, flat files, or data feeds through Seller Central. This error occurs when a value provided in one column of your feed is either invalid on its own or conflicts with a value supplied in another column. Understanding what triggers this error and how to resolve it is essential for sellers who regularly manage their catalog through bulk uploads.
Key Points / What Sellers Need to Know
- Values are silently ignored — When Error 99011 triggers, Amazon does not reject your entire feed. Instead, the specific field containing the problematic value is skipped, and the rest of the row may still process. This can lead to incomplete or unexpected listing data.
- Two root causes exist — The error fires either because a column value is inherently invalid (wrong format, out-of-range, or not an accepted option) or because it logically conflicts with a value in a different column within the same row.
- Partial updates can cause confusion — Because Amazon ignores only the offending field rather than the entire row, your listing may update with some correct values while silently dropping others, making it harder to spot issues.
- Resubmission is required — To fully correct the listing, you must fix the problematic value and resubmit your feed. Amazon will not automatically retry the ignored field.
Common Causes
Error 99011 most frequently appears when sellers use inventory file templates or flat files to update product listings in bulk. Typical triggers include entering a value that does not match Amazon's accepted options for a given field — for example, providing a color name that is not in the allowed color map, or entering a package dimension in the wrong unit of measure. Another frequent cause is submitting values that contradict each other across columns, such as setting a fulfillment channel to FBA while simultaneously providing merchant-fulfilled shipping settings, or specifying a variation theme in the child row that does not match the parent listing's configuration. Data formatting mismatches, such as entering text in a numeric-only field or using an incorrect date format, can also trigger this warning.
Analysis & Recommendations
Why This Matters
Sellers who manage inventory through flat files and feed uploads encounter this error regularly. Understanding its cause and resolution prevents incomplete listing data that can hurt search visibility and sales.
Key Takeaways
- Error 99011 skips the invalid field rather than rejecting the entire row, so listing data may silently remain incomplete
- The error is caused by either an invalid value format or a logical conflict between two columns in the same row
- Always download the latest flat file template before bulk uploads to ensure your values match current Amazon requirements
- Monitor processing reports after every feed submission to catch and correct ignored fields promptly
Recommended Actions
- →Download your feed processing report from Seller Central and identify the exact column and row triggering the error
- →Cross-reference flagged fields against the current flat file template to find valid accepted values
- →Correct the invalid or conflicting value, resubmit the feed, and verify the processing report shows no remaining errors
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