When a Shopify product CSV imports but product photos fail, the problem is often not the CSV syntax. It is usually that Shopify cannot fetch one or more image URLs during import.

Here is the preflight I use before retrying a large product upload:

Check that every Image Src or Variant Image value starts with http or https. Local paths like C:\images\shirt.jpg will not work.

Open a few image URLs in a private browser window. If the image requires a login, expires, redirects to a file-sharing preview page, or blocks hotlinking, Shopify may not be able to download it.

Keep image rows grouped with the correct product handle. Sorting a CSV by image column or price can separate continuation image rows from their product.