Marketplace Sync Guard

Local, read-only auditing of inventory, price, and SKU mismatches across data sources.

Find inventory, price and SKU mismatches before they turn into overselling, lost sales or catalog errors. Marketplace Sync Guard is a local, read-only audit tool for e-commerce and marketplace operations. Import CSV or XLSX exports from your ERP and sales channels, map the columns, choose a source of truth and compare the data in seconds. Detect issues such as: - Stock differences - Price mismatches - SKU mismatches - Missing products and presence differences - Duplicate records - Status inconsistencies Free features: - Unlimited manual audits - CSV and XLSX imports - Generic sources plus Mercado Livre and Shopee presets - Stock, price, SKU, presence, duplicate and status checks - Search, severity filters and CSV export - English, Portuguese and Spanish - Local-first processing: imported operational files stay on your device - Read-only by design: the extension does not change listings, inventory or prices Founder Pro productivity features: - Saved mapping profiles - Custom source presets - Local audit history - Audit comparison - Custom price tolerances Built for marketplace sellers, e-commerce operators, catalog teams, operations analysts and QA/data-validation workflows. No marketplace credentials are required, and imported catalog files are not sent to Lumen Anima Labs.