Go to Discount Guardian Settings → Bulk Update via CSV → click "Export Missing Costs List". You'll download a file that looks like this:
SKU,Cost SHIRT-RED-L, PANTS-BLACK-32, SHOES-WHITE-42,
Open both files in Excel or Google Sheets. Your supplier sheet likely looks like this:
SKU Price SHIRT-RED-L 12.50 PANTS-BLACK 8.00 SHOES-WHITE 22.00
In cell B2 of your missing costs file, use the formula for your tool:
=XLOOKUP(A2, SupplierSheet!A:A, SupplierSheet!B:B, "")
=VLOOKUP(A2, SupplierSheet!A:B, 2, FALSE)
Then drag the formula down (or double-click the fill handle) to fill all rows.
Excel: File → Save As → choose CSV format
Google Sheets: File → Download → Comma-separated values (.csv)
Go back to Discount Guardian Settings → Bulk Update via CSV → upload the file
All your costs will be updated at once ✅