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Merge Squarespace and TikTok Shop Sales Data for Multi-Channel Reconciliation

Reconciling orders across channels means matching rows that were never designed to be compared side by side.

Why Squarespace and TikTok Shop exports don't line up

Squarespace: a Date column in ISO-like format; Subtotal, Discount, Shipping, and Total as separate columns; an Order ID that's a short alphanumeric code. Also, customer and shipping address fields are wide, so the money and date columns can end up far to the right of the sheet.
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.

For multi-channel reconciliation, 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 Squarespace export and map its columns once.
Drop in your TikTok Shop 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.