From the destination store, you can activate auto-sync for certain product details such as:
Newly added and removed variants
Currently, Syncio is not able to auto-add new products.
New Source store products will need to be manually added in the Sync Products tab in the Destination store Syncio Dashboard. Keep in mind; this is only for New Products. You can auto-add and delete product variants if you have our Sync Settings Add-On.