Check an Amazon inventory CSV before Check and Upload

Start from Amazon's template for the selected inventory type

Seller Central's Check and Upload flow expects a category-specific inventory template. A CSV can be valid syntax and still fail because the worksheet, header, or required value is wrong.

• The upload reports an unknown or missing header
• A tabular export contains columns not in the Amazon template
• Descriptions with commas shift values into the wrong columns

• Diagnose CSV column counts and quoted fields →Review structural findings before changing a value or header.
• Select the columns required by the template →Remove export-only fields while keeping all data rows.

Compare structure before changing catalog values

Download the current template and compare it with the export. LocaCSV can show column counts, quotes, and empty rows, but it cannot determine category, SKU, or fulfillment policy.

• Use the template version for the selected marketplace and category
• Keep SKU and product identifiers as text
• Record any removed export-only column rather than deleting it from the source

• Diagnose CSV column counts and quoted fields →Review structural findings before changing a value or header.
• Select the columns required by the template →Remove export-only fields while keeping all data rows.

Prepare an upload copy in LocaCSV

LocaCSV does not validate Amazon category rules or create listings. It helps ensure that the file reaching Seller Central has an intentional structure.

1. 1Run CSV diagnosis on the inventory export
2. 2Compare headers and select only the template columns required for the upload
3. 3Check quoting, delimiters, and encoding without rewriting values
4. 4Upload a small sample with Check and Upload and save the processing report

Use Seller Central's result as the final check

• The header and column order match the current Amazon template
• Input and output row counts reconcile after any explicit exclusions
• SKU, UPC/EAN, price, and quantity remain unchanged
• The Check and Upload report is saved with the output filename

• Diagnose CSV column counts and quoted fields →Review structural findings before changing a value or header.
• Select the columns required by the template →Remove export-only fields while keeping all data rows.
• Check the CSV character encoding →Choose the source encoding from the preview instead of guessing from the country.

If Amazon returns an error file

Follow the specific row and field in the error file. Distinguish template or encoding errors from category, identifier, pricing, and account restrictions before regenerating the CSV.

• Diagnose CSV column counts and quoted fields →Review structural findings before changing a value or header.
• Select the columns required by the template →Remove export-only fields while keeping all data rows.
• Check the CSV character encoding →Choose the source encoding from the preview instead of guessing from the country.

Diagnose the Amazon inventory file