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Merge Amazon Seller Central and TikTok Shop Sales Data for Sales Tax Reporting in France

Sales tax reporting needs order totals broken out consistently by date and location, which rarely matches between two platforms' raw exports. In France, that also means accounting for TVA (VAT): TVA reporting follows the same EU distance-selling logic as other EU countries, with revenue split by buyer location above the threshold.

Why Amazon Seller Central and TikTok Shop exports don't line up

Amazon Seller Central: a purchase date/time column stamped in UTC, not your local time; item price, promotion discounts, and Amazon referral fees split across several columns; an Amazon Order ID in a long dashed format (e.g. 123-4567890-1234567).
TikTok Shop: an order creation time stamped in UTC; order amount, platform commission, and affiliate commission split into separate columns; a long numeric Order ID.

Neither export is built with TVA (VAT) in mind, so getting from "two raw files" to "France-ready numbers" means normalizing dates/totals first, then applying your own TVA (VAT) treatment on top of the merged total — not per platform separately.

How to merge them

Set your target columns once in CSV Experts (Date, Channel, Order ID, Total, and a Currency column if you sell in more than EUR).
Map the Amazon Seller Central export, then the TikTok Shop export — each file shape is remembered after the first time.
Export the merged sheet and apply your TVA (VAT) treatment to the combined total.

Merge your files now →

FAQ

Does this upload my sales data anywhere?

No. Everything runs in your browser using JavaScript — your files are never sent to a server.

Does it work for more than two channels?

Yes. Add as many source files as you want; each distinct file layout is mapped once and remembered.

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