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How do I update BigCommerce stock and prices from a supplier file?

In Export Stash's Inventory Sync, point to your supplier's CSV, map the SKU column and the fields to update, and set a schedule. Existing products are matched by SKU and updated automatically.

What you need

A BigCommerce store with Export Stash installed
A supplier CSV with a SKU column, uploaded or hosted on FTP, FTPS, SFTP or a download URL

Steps

Open Inventory Sync and create a new sync profile.
Source: choose Upload a file, FTP, FTPS, SFTP or Download URL.
File or Connection: choose your file, or enter the server details or URL and click Connect and read file.
Map columns: map the SKU column, then the fields to update, such as inventory level, price, sale price or cost price.
Settings: optionally adjust prices by a markup or markdown percentage and pick a rounding rule, then set the schedule and click Save.
On the profile card, click Dry run to preview the changes, then turn Sync on.

Good to know

Fields you can update: inventory level, price, sale, retail and cost price, weight, UPC, MPN, GTIN, bin picking number, name and description.
Rounding options: ends in .99, .95 or .90, nearest .05 or .10, nearest whole number, or ends in 9.
Schedules: every few hours, daily, weekdays, weekends, chosen days, or the first or last day of the month. Uploaded files run when you start them.
Products are matched by SKU. File sync updates existing products and does not create new ones.

FAQ

Can I add a markup to supplier prices?

Yes. Mark prices up or down by a percentage, then round them, for example to .99.

How often can the supplier file be checked?

From every few hours to monthly, on the schedule you set.

Does it create new products?

No. To create products from a CSV, use the product import.

Install Export Stash from the BigCommerce App Marketplace — free for 7 days.

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Updated 2026-10-11 · FAQ · Compare · Help Centre