You are able to update products Swift Distribution Nested with Stock Sync. Just choose on Swift Distribution Nested template after choosing to update existing products in your store.
1. Go to Setup New Feed > Choose Update existing products.
2. Choose or search for Swift Distribution Nested template.
3. You need to fill up the Username and Password from your Swift Distribution Nested profile.
4. Click Next to the field mapping section.
These are the available fields that can be updated with Stock Sync.
|quantity||Variant Inventory Qty|