Whenever you add new products to your Shopify store using Stock Sync, it will be considered as one activity. Stock Sync allows you to Undo the latest activity of your Add Product feed.
You can find the Undo button next to the total product added.
If you could not find the Undo button next to your latest activity, it means the activity has already been Undo.
This is only applicable to the latest activity, any previous activity can be Undone.