How to Manage Image Formats
Summary
Supported and preferred image formats vary by sales channel, which affects both listing appearance and store load speed; setting the Publish Template's image field to Don't Map keeps Flxpoint from overwriting images you added directly on the channel.
Image format affects both how your listings look and how fast your store loads, which matters most in drop-shipping. Supported formats vary by channel, so match your images to each channel's accepted and preferred formats.
- Match the channel — Use each channel's supported formats, and its preferred format for product photos.
- Optimize delivery — Where supported, WebP delivers optimized images; JPEG is the safe default for product photos.
- Avoid overwriting your images — Set the Publish Template's image field to Don't Map to keep images you added on the channel.
| Channel | Formats | Preferred |
|---|---|---|
| Amazon | JPEG, PNG, TIFF, GIF | JPEG for product photos |
| eBay | JPEG, PNG, GIF, BMP, TIFF | JPEG general; PNG for transparency |
| Shopify | JPEG, PNG, GIF, WebP | JPEG most; WebP for optimized delivery |
| Walmart | JPEG, PNG, GIF | JPEG for product images |
| BigCommerce | JPEG, PNG, GIF, WebP | JPEG and WebP |
| WooCommerce | JPEG, PNG, GIF, WebP | JPEG and WebP |
| Magento | JPEG, PNG, GIF, WebP | JPEG for most product images |
Shopify publish fails on advanced image duplication logic
The error “Advanced image duplication logic is enabled. All of this product's images must first be fetched…” is a channel-side image-handling gate and is not fixed by rebuilding. Review the channel's advanced image settings; contact support with the affected product if you cannot locate the setting.
Which format should I use by default?
JPEG is the safe default for product photos across channels. Use WebP where supported (Shopify, BigCommerce, WooCommerce, Magento) for optimized delivery, and PNG when you need transparency.
How do I stop Flxpoint from overwriting images I set on the channel?
Set the Publish Template's image field to Don't Map so publishing and overwriting leave the channel images alone.