🔲 Shopify to Square Inventory CSV Converter for Market Sellers
Market-day workflow

Shopify to Square Inventory Converter for Market Sellers

A simple CSV tool for Shopify store owners who use Square Terminal for face-to-face market sales. Load Square before the market, then update Shopify inventory after the market ends.

1Before market

Export products or inventory from Shopify.

2Load Square

Convert Shopify sheet into a Square-ready import file.

3After market

Export the remaining stock file from Square.

4Update Shopify

Convert Square stock into a Shopify inventory update CSV.

Shopify to Square CSV converter for market inventory

This tool is built for small Shopify store owners who sell at markets, pop-ups, craft fairs, and in-person events using Square Terminal. Before the market starts, export your Shopify products or inventory and turn it into a Square-ready import file. After the market ends, export your Square item or inventory file and turn it into a Shopify inventory update file.

Before the market

Use Shopify as the main store record. Convert Shopify product names, variants, SKUs, prices, and stock counts into a Square import CSV.

After the market

Use Square as the latest face-to-face sales record. Convert remaining Square stock back into a Shopify inventory CSV.

Built for safer imports

The app checks missing SKUs, duplicate SKUs, blank quantities, and risky rows before you download the final CSV.

How the market-day inventory workflow works

  • Export products or inventory from Shopify before the event.
  • Convert the file into a Square import CSV and load it into Square.
  • Sell in person using Square Terminal during the market.
  • Export Square inventory after the market ends.
  • Convert the Square export into a Shopify inventory update CSV.

1. Choose the task

Pick where you are in the market workflow.

2. Upload your file

Upload the Shopify product or inventory export you want to load into Square before the market.

Recommended after market: Shopify reference export

When converting Square to Shopify, add the latest Shopify product export so the app can fill Shopify handles and variant options accurately.

3. Review quality before upload

The app checks the transfer so the user can catch issues before uploading to Shopify or Square.

Upload a file, then click Convert and Review.
Plain-English process: Shopify is the main store. Before the market, copy Shopify inventory into Square. After the market, Square has the newest remaining stock, so copy Square inventory back into Shopify. The app uses SKU as the bridge and shows quality issues before export.

SquareShopifyInventoryConverter

Convert Shopify and Square product or inventory CSV files for market-day updates in either direction.

What this tool does

Convert Shopify and Square product or inventory CSV files for market-day updates in either direction.

Who this is for

How to use this tool

  1. Review the controls and instructions on the page
  2. Enter your information or choose the options you need
  3. Review the result in the app workspace
  4. Export, download, or save the result when the tool provides that option

Inputs

Inputs vary by tool and are provided through the visible fields, controls, files, or interactive workspace on this page.

Outputs

Outputs depend on the selected options and may include an analysis, generated content, visualization, calculation, simulation, or downloadable file.

Example use cases

Explore more SolvProb tools

Frequently asked questions

What files can this converter process?

Upload Shopify product or inventory CSV files, or Square item exports. The converter detects the supported source format and previews the transformed rows before download.

Does it connect to Shopify or Square automatically?

No. This is a browser-based CSV workflow with no store API connection. Review the output and import it manually into the destination system.

How are products and variations matched?

SKU is the primary matching field for Shopify variants and Square item variations. Review warnings and errors before using a converted file for inventory updates.

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