Error 90777 — Field validation and value errors

A specific field failed Amazon's validation — wrong format, out-of-range value, or invalid character.

Specific to error 90777: see Amazon's processing report for the exact field or attribute that failed validation. The 90000-series typically covers field validation and value errors — review Amazon's official docs for code-specific guidance.

1. Read the processing report for the exact field name.
2. Correct the value to match Amazon's accepted format (lookup category schema if needed).
3. Resubmit and verify in the next processing report.
4. Open Amazon's official explanation for this code via the link below for the most authoritative guidance.

• Generic feed templates often miss category-specific required attributes
• Stale schema versions trigger validation errors that newer schemas don't