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PREFLIGHT CHECK

Mercari Shops 10,000-row product CSV limit checker

Count product rows and flag CSV files that exceed the documented 10,000-product bulk registration limit.

Check file

Analysis stays in your browser; the file itself is not sent to BlueprintLab.

What this tool checks

  • Count product rows and flag CSV files that exceed the documented 10,000-product bulk registration limit.

What it cannot verify

Live service-side state, account-specific settings, remote server reachability and current master data are not asserted. Always prefer the latest official service information.

About this tool

Mercari Shops 10,000-row product CSV limit checker is a free browser-based preflight utility from BlueprintLab Tools. Count product rows and flag CSV files that exceed the documented 10,000-product bulk registration limit.

No account is required. File contents are processed locally in your browser whenever possible.

How to use

  1. Choose the target file.
  2. Run the check.
  3. Review detected issues and fix the source file if needed.