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Merge TikTok Shop and Wayfair Sales Data for Side Hustle Bookkeeping

Running sales channels as a side hustle usually means doing your own books, which gets tedious fast once more than one platform is involved.

Why TikTok Shop and Wayfair exports don't line up

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. Also, refunded and partially-refunded orders stay in the export with a status column instead of being removed, so totals can overstate revenue if you don't filter by status.
Wayfair: a purchase order date distinct from the ship date required by Wayfair's supplier terms; wholesale cost, freight allowance, and Wayfair's referral fee as separate columns; a Purchase Order (PO) number rather than a typical order ID. Also, built for suppliers rather than direct-to-consumer sellers, so column names lean toward logistics (PO, ship window) rather than retail checkout fields.

For side hustle bookkeeping, that mismatch is exactly what causes hours of manual cleanup every period.

Open CSV Experts and set your target columns once (Date, Channel, Order ID, Total).
Drop in your TikTok Shop export and map its columns once.
Drop in your Wayfair export and map it the same way — both merge into one sheet, normalized.
Export as CSV or Excel. Same-layout files merge automatically next time.

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

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