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The Best Way to Merge WooCommerce and Walmart Marketplace Data for Reseller Income Tracking

If you're doing reseller income tracking by hand right now, here's the fastest path from "two exports" to "one usable sheet," and why the manual version keeps breaking.

Step by step

  1. Decide your target columns once. Most people settle on Date, Channel, Order ID, and Total — set that up in CSV Experts and you won't redo it.
  2. Import the WooCommerce file first. The first time you see this file shape, you map each of its columns to your target list.
  3. Import the Walmart Marketplace file the same way. Its columns get mapped once too — after that, every future file with this shape merges with no extra clicks.
  4. Check the merged totals. Dates and numbers are normalized automatically, so a European "24,00" and a US "24.00" both land as the same value.
  5. Export. CSV or Excel, ready for reseller income tracking.

What actually goes wrong if you do this by hand

WooCommerce gives you an Order Date in whatever format your WordPress site's locale is set to, while Walmart Marketplace gives you an Order Date column separate from the ship-by date — line those up manually across a few hundred rows and it's easy to miscount a week. On top of that, WooCommerce's export column layout depends on which export plugin generated the CSV, so two WooCommerce stores can produce different headers entirely, and Walmart Marketplace's each order line can appear as its own row with a repeated order ID, similar to Shopify's line-item export. Individually those are minor quirks; combined into one spreadsheet by hand, they're where most reconciliation errors for reseller income tracking actually come from.

Why it matters for reseller income tracking

Resellers selling the same inventory across platforms need one combined view of what actually sold and where.

Try it with your own files →

Just want the quick column-difference reference instead? See the short version.

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