Feed File Failed Processing

The entire feed file failed processing before any items were ingested. Usually caused by schema, format, or authentication errors at the file level.

Walmart rejects whole files when XML/JSON is malformed, when the spec version doesn't match, when required headers are missing, or when the file exceeds size limits (25 MB or 10,000 items). API authentication failures and incorrect feedType values also surface as full-feed rejections rather than per-item errors.

1. Open Feed Status and download the full error response
2. Validate file against the Walmart XSD or JSON schema
3. Confirm spec version matches your endpoint version
4. Split files exceeding 10,000 items into smaller batches
5. Verify API credentials and feedType parameter

• Mixing item and inventory data in one feed
• Submitting UTF-8 with BOM that breaks the parser