If you have products in Lightspeed, you can test the connection.
Click on the Inventory button at the top of the Hyperspace dashboard.
At the bottom of this tab click the + MORE button,
And under that button is a blue LOAD INVENTORY button.
Click on the Load Inventory button and Hyperspace will check Lightspeed for existing products, product images, stock and more and begin syncing to Hyperspace. In a few minutes all of your product data will appear under the Inventory tab in Hyperspace.
The Load Inventory button is also a good button to press to get instant updates on anything added to Lightspeed in the last minute.