When a Shopify product CSV import fails, the real cause is often not the row Shopify highlights. A single invisible header space, regional price format, private image URL, or oversized file can make a clean-looking spreadsheet fail at upload time.
Here is the checklist I use before importing a product CSV.
1. Start with the header row
Shopify maps product data by exact column names. Before editing product rows, check the first row:
no blank header cells






