Walmart Marketplace upload repair
Walmart Marketplace bulk upload errors: the complete fix guide
Applies to: MP_ITEM, MP_MAINTENANCE, MP_ITEM_MATCH
What causes this error
Walmart bulk uploads (MP_ITEM, MP_MAINTENANCE, Setup by Match) fail per-SKU with cryptic errors in the Activity Feed report. This hub indexes the most common ones, split into everyday validation errors and Item Spec 5.0 migration breaks.
How to fix it
Option A: fix it manually
- Download your Activity Feed error report and read the per-SKU errors.
- Match each error to its page below for the cause and exact fix.
- Fix all flagged rows, then re-validate before re-uploading.
Option B: fix it automatically
The fixer can identify the exact row and field, but you may need to provide the final seller-specific value.
Auto-fixer launching soon
We're building a tool that fixes this error automatically. Upload your file, download a corrected one, and get notified when it's live.