When transferring products from Shopify to Etsy, you may need a fallback stock quantity. Shuttle allows setting a default stock quantity that will automatically apply under certain conditions:
Shopify isn’t tracking inventory for the product.
Shopify tracks inventory at the product level, but its variants have differing stock levels.
Shopify allows overselling, and the product’s quantity is zero or negative.
This ensures transferred products always have a sensible stock level, avoiding situations where Etsy might reject or misinterpret the listing.
To use this option:
Navigate to Product Settings → Shopify to Etsy → Stock Quantity.
Enter your desired default quantity (0-999).
Save the settings.
Tip: If you'd rather always reflect the lowest variant quantity from Shopify, see the article "Using Lowest Shopify Variant Stock Quantity on Etsy".