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Merge Shopify and TikTok Shop Sales Data for Sales Tax Reporting in Germany

Sales tax reporting needs order totals broken out consistently by date and location, which rarely matches between two platforms' raw exports. In Germany, that also means accounting for Mehrwertsteuer (VAT): VAT rates and EU distance-selling thresholds mean revenue often needs to be split by destination country, not just totalled.

Why Shopify and TikTok Shop exports don't line up

Shopify: a Created At timestamp that includes a timezone offset; a single Total column that already nets out discounts, with tax broken out separately; an order Name like #1001 rather than a numeric ID.
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 Mehrwertsteuer (VAT) in mind, so getting from "two raw files" to "Germany-ready numbers" means normalizing dates/totals first, then applying your own Mehrwertsteuer (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 Shopify export, then the TikTok Shop export — each file shape is remembered after the first time.
Export the merged sheet and apply your Mehrwertsteuer (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.

Other countries for Shopify + TikTok Shop

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