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Merge Facebook Marketplace and Bonanza Sales Data for Monthly Sales Reporting

A monthly sales report across channels needs one date format and one revenue column, not a per-platform patchwork.

Why Facebook Marketplace and Bonanza exports don't line up

Facebook Marketplace: an order date recorded through Meta's commerce backend; item total and a Meta selling fee where checkout is enabled; an order ID formatted differently depending on whether Shop Pay or Meta Pay processed the transaction. Also, many sellers use Marketplace only for listings with no built-in checkout, so exports may only exist via a connected store's own platform.
Bonanza: a sale date shown in the seller's account timezone; item price and a Bonanza final value fee that varies by advertising tier chosen per listing; an order ID unique to the marketplace. Also, fee amounts differ per listing based on optional ad placement, so two otherwise-identical sales can show different fee columns.

For monthly sales reporting, 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 Facebook Marketplace export and map its columns once.
Drop in your Bonanza 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.