How to only sync from Etsy to Shopify?

If you only want Syncr to sync your Shopify shop based on Etsy chnages, without affecting your Etsy stock - you can click on the big green 'Etsy to Shopify' button in the Dashboard's Overview page to switch it to 'Disabled'.

This will cause Syncr to ignore all changes that happen in Shopify and only track changes in Etsy.