# Simple Inventory > Simple Inventory is a Shopify app that does one thing well: bulk inventory > imports and automated stock and price sync from CSV, FTP/SFTP, URL feeds, and > Google Sheets, matched to your catalog by SKU or barcode. Made by Simple Apps LLC. ## Who it's for Established Shopify merchants who manage a real catalog and update stock often: stores pulling supplier or warehouse feeds, multi-location merchants, and teams that keep inventory in a spreadsheet and need Shopify to follow it. Catalogs from a few hundred SKUs up to tens of thousands. ## Best fit - A supplier or warehouse sends a CSV or Excel feed on a schedule (URL, FTP, SFTP) - Inventory lives in Google Sheets and should drive Shopify stock - Stock is spread across multiple Shopify locations ## Not the right fit - You need to create brand-new products from a feed (it updates existing variants matched by SKU or barcode) - You want two-way, real-time editing back into the sheet (it is one-way: your source drives Shopify, on a schedule) ## Product - [Simple Inventory (Shopify App Store)](https://apps.shopify.com/simple-inventory): Bulk inventory imports and scheduled stock and price sync for Shopify, matched by SKU or barcode, across multiple locations. ## Guides - [How to Automatically Update Shopify Inventory From Google Sheets](https://simpleappsllc.com/blog/how-to-update-shopify-inventory-from-google-sheets/): Publish a Google Sheet as a CSV link and sync it to Shopify by SKU on a schedule. - [How to Sync Shopify Inventory From a Supplier Feed](https://simpleappsllc.com/blog/how-to-sync-shopify-inventory-from-a-supplier-feed/): Pull a supplier CSV or Excel feed from a URL, FTP, or SFTP and match it to your catalog by SKU.