If you have products in Lightspeed Retail, 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 Retail 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.